AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 31, 2005

 
                                                     REGISTRATION NO. 333-115261
 
                UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                             ---------------------

                                AMENDMENT NO. 4

                                       TO
 
                                    FORM S-3
                          REGISTRATION STATEMENT UNDER
                           THE SECURITIES ACT OF 1933
                             ---------------------
                           CANARGO ENERGY CORPORATION
             (Exact name of registrant as specified in its charter)
 

                                                      
                        DELAWARE                                                91-0881481
            (State or other jurisdiction of                                  (I.R.S. Employer
             incorporation or organization)                                Identification No.)

 
                          P.O. BOX 291, ST PETER PORT
                        GUERNSEY, GY1 3RR, BRITISH ISLES
                               +(44) 1481 729 980
              (Address, including zip code, and telephone number,
       including area code, of registrant's principal executive offices)
                             ---------------------
                                DR. DAVID ROBSON
                CHAIRMAN, PRESIDENT AND CHIEF EXECUTIVE OFFICER
                          P.O. BOX 291, ST PETER PORT
                        GUERNSEY, GY1 3RR, BRITISH ISLES
                               +(44) 1481 729 980
           (Name, address, including zip code, and telephone number,
                   including area code of agent for service)
                             ---------------------
                PLEASE FORWARD A COPY OF ALL CORRESPONDENCE TO:
 
                           PETER A. BASILEVSKY, ESQ.
                      SATTERLEE STEPHENS BURKE & BURKE LLP
                          11TH FLOOR, 230 PARK AVENUE
                               NEW YORK, NY 10169
                                 (212) 818-9200
                             ---------------------
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  From time
to time after this Registration Statement becomes effective.
                             ---------------------
 
    If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box.  [ ]
 
    If any of the securities being registered on this form are being offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act,
check the following box.  [X]
 
    If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering.  [ ]
 
    If this form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
 
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]
 
                        CALCULATION OF REGISTRATION FEE
 


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                                                                      PROPOSED MAXIMUM    PROPOSED MAXIMUM        AMOUNT OF
             TITLE OF EACH CLASS OF                 AMOUNT TO BE       OFFERING PRICE         AGGREGATE         REGISTRATION
          SECURITIES TO BE REGISTERED               REGISTERED(1)       PER SHARE(2)      OFFERING PRICE(2)        FEE(3)
--------------------------------------------------------------------------------------------------------------------------------
                                                                                                 
Common Stock, $0.10 par value...................     36,260,799            $0.805            $24,525,439           $3,108
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--------------------------------------------------------------------------------------------------------------------------------

 
(1) In the event of a stock split, stock dividend or similar transaction
    involving the shares of common stock, in order to prevent dilution, the
    number of shares registered shall be automatically increased to cover the
    additional shares in accordance with Rule 416 under the Securities Act of
    1933.
(2) Estimated solely for the purpose of calculating the registration fee;
    computed in accordance with Rule 457(c) on the basis of the average of the
    high and low prices for the common stock as reported on the American Stock
    Exchange of $0.675 per share on May 4, 2004, with respect to 35,880,799
    shares and $0.805 per share on October 25, 2004 with respect to 380,000
    additional shares.
(3) The Registrant paid a registration fee of $3,068.62 when this Registration
    Statement was originally filed on May 6, 2004. An additional fee of $391 was
    paid when Amendment No. 1 to this Registration Statement was filed on
    October 28, 2004.
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(a), MAY DETERMINE.

 
THE INFORMATION CONTAINED IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED.
WE MAY NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO SELL THESE SECURITIES AND IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES
IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.
 

                 SUBJECT TO COMPLETION DATED JANUARY 31, 2005.

 
PRELIMINARY PROSPECTUS
 
                           CANARGO ENERGY CORPORATION
 
                       [CANARGO ENERGY CORPORATION LOGO]
 
                       36,260,799 SHARES OF COMMON STOCK
                             ---------------------
    This prospectus relates to the resale from time to time in one or more
transactions of up to 36,260,799 shares of our common stock by certain of our
stockholders who received or have the right to receive their shares in private
placements in connection with certain completed corporate transactions. Please
refer to "Selling Stockholders" beginning on page 17.
 
    The prices at which the selling stockholders may sell their shares in this
offering will be determined by the prevailing market price for the shares or in
privately negotiated transactions. We will not receive any of the proceeds from
the resale of these shares; however, we will receive proceeds from the sale of
common stock under a certain Standby Equity Distribution Agreement dated as of
February 11, 2004 with Cornell Capital Partners, L.P. ("Equity Line of Credit").
All expenses of registration of the shares which may be offered hereby under the
Securities Act of 1933, as amended ("Securities Act") will be paid by us (other
than underwriting discounts and selling commissions, and fees and expenses of
advisors to any of the selling stockholders). See "Plan of Distribution" at page
24.
 

    Our common stock is traded on the American Stock Exchange and the Oslo Stock
Exchange under the symbol "CNR". The last reported sale price of our common
stock on the American Stock Exchange Composite Transactions Tape on January 27,
2005 was $1.35 per share and on the Oslo Stock Exchange was Norwegian kroner
("NOK") 8.72. On January 27, 2005, one U.S. dollar equaled NOK6.32 as reported
on www.oanda.com. All references in this prospectus to "$" refers to United
States dollars.

                             ---------------------
      SEE "RISK FACTORS" BEGINNING ON PAGE 8 TO READ ABOUT THE RISKS YOU SHOULD
CONSIDER CAREFULLY BEFORE BUYING SHARES OF OUR COMMON STOCK.
                             ---------------------

    Cornell Capital Partners, L.P. ("Cornell") is an "underwriter" for purposes
of the Securities Act in connection with the resale of common stock it receives
under the Equity Line of Credit. In respect of the Equity Line of Credit
agreement, Cornell will receive a substantial discount to the prevailing market
price of our common stock. The level of the discount will vary depending on the
market price of our stock and the amount drawn down under the Equity Line of
Credit. For example, on the basis of the average high and low price for our
common stock as reported on the American Stock Exchange on January 27, 2005 of
$1.37, this discount would be approximately 13.87% which is comprised of (1) a
3% discount to the purchase price of our Market Price as calculated in the
Equity Line of Credit agreement; (2) the retention by Cornell of 5% of each
advance under the Equity Line of Credit; and (3) a commitment fee of 5.87%. The
commitment fee is comprised of a payment of $10,000 in cash and the issuance of
850,000 restricted shares of CanArgo common stock. The 850,000 shares of common
stock issued in respect of the commitment fee represents nearly 4% of the
estimated 23 million shares of common stock that may be issued by us under the
Equity Line of Credit. In addition, we engaged Newbridge Securities Corporation
("Newbridge"), a registered broker-dealer, to advise us and to act as our
exclusive placement agent in connection with the Equity Line of Credit. For its
services, Newbridge, which is also an "underwriter" for purposes of the
Securities Act, received 30,799 shares of our common stock as compensation. The
shares of common stock issued to Newbridge, among other shares are being
registered for resale with the SEC under the registration statement of which
this prospectus forms a part. With the exception of Cornell and Newbridge, no
other underwriter or person has been engaged to facilitate the sale of our
common stock in this offering.

                             ---------------------
    NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
REGULATORS HAVE APPROVED OR DISAPPROVED THESE SECURITIES, OR DETERMINED IF THIS
PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
                             ---------------------
                 The date of this Prospectus is    --   , 2005

 
                               TABLE OF CONTENTS
 


                                                              PAGE
                                                              ----
                                                           
PROSPECTUS
  PROSPECTUS SUMMARY........................................    1
     About CanArgo..........................................    1
     The Offering...........................................    2
     Recent Developments....................................    3
  RISK FACTORS..............................................    8
  CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING
     STATEMENTS.............................................   16
  USE OF PROCEEDS...........................................   17
  THE SELLING STOCKHOLDERS..................................   17
  EQUITY LINE OF CREDIT.....................................   21
  SECTION 203 OF DELAWARE GENERAL CORPORATION LAW...........   22
  PLAN OF DISTRIBUTION......................................   24
  LEGAL MATTERS.............................................   26
  EXPERTS...................................................   26
  WHERE YOU CAN FIND MORE INFORMATION.......................   26
  DOCUMENTS INCORPORATED BY REFERENCE.......................   27

 
                             ---------------------
 
     You should rely only on the information we have provided or incorporated by
reference in this prospectus. We have not authorized any other person to provide
you with different or additional information. If anyone provides you with
different or additional information, you should not rely on it. This prospectus
is not an offer to sell or a solicitation of an offer to purchase these
securities in any jurisdiction where the offer or sale is not permitted. Neither
the delivery of this prospectus nor any sale made hereunder shall, under any
circumstances, create an implication that there has been no change in the
affairs of the Company since the date hereof.

 
                               PROSPECTUS SUMMARY
 
     The following summary highlights selected information contained in this
prospectus. This summary does not contain all the information you should
consider before investing in the securities. Before making an investment
decision, you should read the entire prospectus and the information incorporated
by reference herein carefully, including the "Risk Factors" section.
 
     Unless the context requires otherwise, the references to "we", "us", "our",
the "Company", or "CanArgo" refer collectively to CanArgo Energy Corporation and
its subsidiaries.
 
                                 ABOUT CANARGO
 
     We are an independent oil and gas exploration and production company
incorporated with limited liability under the laws of the State of Delaware,
U.S.A., headquartered in St Peter Port, Guernsey, British Isles, but not
regulated in Guernsey, operating in countries which were a part of the former
Soviet Union. We operate and carry out our activities as a holding company
through a number of subsidiaries and associated or affiliated companies. These
companies are generally focused on one of our projects, and this structure
assists in maintaining separate cost centers for these different projects.
 
     Our principal activities are oil and gas exploration, development and
production, principally in the Republic of Georgia, and to a lesser extent in
Kazakhstan and Azerbaijan. We direct most of our efforts and resources to the
development of the Ninotsminda Field, our recently acquired interest in Samgori
Field and our exploration and appraisal program in Georgia. As we own certain
drilling rigs and equipment, we also have a secondary interest in the provision
of oilfield services to third parties in the oil and gas industry, principally
in Georgia. In 2003, 97.2% of our total revenues were from oil and gas sales and
2.8% from oilfield services. Our management and technical staff have substantial
experience in our areas of operation. Our principal product is crude oil, and
the sale of crude oil is our principal source of revenue.
 
     Our oil and natural gas reserves and production have been derived
principally through development of the Ninotsminda Field. We typically focus on
properties that either offer us existing production as well as additional
exploitation opportunities, or exploration prospects which management believes
have significant potential. CanArgo has additional exploratory and developmental
oil and gas properties and prospects in Georgia and owns interests in other oil
and gas projects located in the former Soviet Union. The Company operates in a
global market and has an insignificant market share in such market. We believe
that our cash flow at current oil prices and current rates of production from
operations and our financial resources, including the drawdown on the Standby
Equity Distribution Agreement ("Equity Line of Credit") being provided by
Cornell for up to $20,000,000 as described in this prospectus, and the receipt
of proceeds from the sale of certain non-core assets and from our recent global
offering of 75,000,000 shares of common stock, will provide us with the ability
to complete our near term development program on the Ninotsminda Field and our
newly acquired interest in the Samgori Field, while our current exploration
drilling program in Georgia is being funded primarily by third parties.
 
     Our business strategy is focused on the following:
 
FURTHER DEVELOPMENT OF EXISTING PROPERTIES
 
     We intend to further develop our properties that have established oil and
gas resources. We seek to add proved reserves and increase production through
the use of advanced technologies, including detailed technical analysis of our
properties, horizontal drilling, utilization of under-balanced and coiled tubing
drilling, multilateral drilling, drilling new structures from existing locations
and selectively recompleting existing wells. We also plan to drill step-out
wells to expand known field limits.
 
GROWTH THROUGH EXPLOITATION AND EXPLORATION
 
     We conduct an active technology-driven exploitation and exploration program
that is designed to complement our property acquisition and development drilling
efforts with moderate to high-risk exploration projects that have greater
reserve potential. We generate exploration prospects through the analysis and
integration of geological and geophysical data and the interpretation of seismic
data. We intend to manage our exploration expenditures through the optimal
scheduling of our drilling program and, if considered appropri-
                                        1

 
ate, selectively reducing our participation in certain exploratory prospects
through sales of interests to industry partners.
 
PURSUIT OF STRATEGIC ACQUISITIONS
 
     We continually review opportunities to acquire producing properties,
leasehold acreage and drilling prospects and seek to acquire operational control
of properties that we believe have significant exploitation and exploration
potential. We are especially focused on increasing our holdings in fields and
basins from which we leverage existing infrastructure and resources.
 
     Our address is P.O. Box 291, St Peter Port, Guernsey, GY1 3RR, British
Isles, and our telephone number is +(44) 1481 729 980.
 
                                  THE OFFERING
 

COMMON STOCK TO BE OFFERED BY
THE SELLING STOCKHOLDERS......   Up to 36,260,799 shares based on current market
                                 prices. This number represents approximately
                                 18.6% of our current outstanding stock and
                                 includes 23,000,000 shares of common stock to
                                 be issued and sold to Cornell under the Equity
                                 Line of Credit agreement; 850,000 shares of
                                 common stock issued to Cornell in connection
                                 with the Equity Line of Credit agreement;
                                 30,799 shares of common stock issued to our
                                 placement agent in connection with the Equity
                                 Line of Credit, 12,080,000 shares of common
                                 stock issued in connection with certain
                                 acquisition transactions and 300,000 shares of
                                 common stock to be issued in connection with a
                                 certain loan and warrant agreement. In the
                                 event that we draw down $600,000 under the
                                 equity line, which is the maximum permitted
                                 advance within a six day period, we would be
                                 required to issue 437,956 shares of common
                                 stock on January 27, 2005, based on the lowest
                                 volume weighted average price of $1.37 as
                                 reported on the Oslo Stock Exchange on that
                                 date.

 
COMMON STOCK TO BE OUTSTANDING
AFTER THE OFFERING............   Up to 218,419,320 shares, assuming the full
                                 exercise of certain warrants held by certain of
                                 the selling stockholders. We have 300,000,000
                                 shares of common stock authorized for issuance.
 
USE OF PROCEEDS...............   Except for the proceeds from the sale of our
                                 common stock pursuant to the Equity Line of
                                 Credit, we will not receive any proceeds from
                                 the sale of the common stock. See "Use of
                                 Proceeds" and "Equity Line of Credit" for a
                                 complete description. All expenses of
                                 registration of the shares which may be offered
                                 hereby under the Securities Act will be paid by
                                 us (other than underwriting discounts and
                                 selling commissions, and fees and expenses of
                                 advisors to any of the selling stockholders).
                                 See "Plan of Distribution" at page 24.
 
THE AMERICAN STOCK EXCHANGE
SYMBOL........................   CNR
 
THE OSLO STOCK EXCHANGE
SYMBOL........................   CNR
 

     The above information is based on 195,119,320 shares of common stock
outstanding as of January 28, 2005.

 
                                        2

 
                              RECENT DEVELOPMENTS
 
     On February 11, 2004, we entered into an Equity Line of Credit with Cornell
Capital Partners, L.P. ("Cornell") which is described in greater detail under
"Equity Line of Credit" below. Cornell is a Delaware private limited partnership
formed in February 2000 whose business operations are conducted through its
general partner, Yorkville Advisors, LLC. In addition, we engaged Newbridge
Securities Corporation ("Newbridge"), a registered broker-dealer, to advise us
and to act as our exclusive placement agent in connection with the Equity Line
of Credit pursuant to the Placement Agent Agreement dated February 11, 2004. For
its services, Newbridge received 30,799 restricted shares of our common stock
and Cornell received 850,000 restricted shares of common stock in three
tranches. The shares of common stock issued to Newbridge and Cornell are being
registered for resale under the Registration Statement of which this prospectus
forms a part.
 
     In February 2004 we announced that we had obtained governmental regulatory
approval to an agreement to obtain 50% of the Contractor's interest in Samgori
(Block XI(B)) Production Sharing Contract (the "Samgori PSC") in the Republic of
Georgia and a 50% controlling interest in the license holder and operating
company for Block XI(B) covering the Samgori, Patardzeuli and South Dome Oil
Fields (collectively, the "Samgori Field") from Georgian Oil Samgori Limited
("GOSL"). GOSL is a wholly owned subsidiary of the State Oil Company, Georgian
Oil. The other conditions contained in the agreement were satisfied on April 15,
2004 and on April 19, 2004 we announced that we had completed the acquisition.
 
     Under the terms of an agreement dated January 8, 2004, up to 10 horizontal
wells may be drilled on the Samgori Field. We are obliged to fund 100% of the
cost of drilling the first well at an anticipated cost of $2,000,000.
Thereafter, based on the results of the drilling of the first horizontal well
and the decision of CanArgo and GOSL, drilling will be funded jointly by a
wholly owned subsidiary of the Company, CanArgo Samgori Limited ("CSL") and
GOSL, the Contractor parties, pro rata according to their interest in the
Samgori PSC. On August 2, 2004, we commenced drilling a new vertical well on the
Field, the S302 well. The total cost to us of participating in the whole
program, which is due to be completed within 36 months, is anticipated to be up
to $13,500,000. The original Contractor party under the Samgori PSC, National
Petroleum Limited ("NPL") has an option to reacquire its Contractor's interest
in the Samgori PSC and its 50% interest in the operating company in the event
that the agreed work program is not completed by December 2006. Furthermore, NPL
has outstanding costs and expenses of approximately $37,000,000 (of which
$33,936,279 is currently approved by Georgian Oil, the remainder being subject
to audit) in relation to the Samgori PSC which are recoverable by NPL receiving
30% of annual net profits from the Field (assuming that there is an annual net
profit) before any payments to the Contractor parties until such costs have been
fully paid. After NPL's costs are repaid from either Field production or other
production covered under the Samgori PSC (in the event that new fields are
developed in areas identified by using seismic surveys originally performed by
NPL), NPL shall continue to receive 5% of annual net profits from the Field.
 
     Under the Samgori PSC, up to 50% of petroleum produced under the contract
is allocated to the Contractor parties for the recovery of the cumulative
allowable capital, operating and other project costs associated with the Samgori
Field and exploration in Block XI(B) ("Cost Recovery"). The Cost Recovery pool
includes the approximately $37,000,000 in costs previously incurred by NPL. The
balance of production ("Profit Oil") is allocated on a 50/50 basis between the
State and the Contractor parties, respectively. While GOSL and CSL continue to
have unrecovered costs, they will receive 75% of total production (net 37.5% to
us). After recovery of their cumulative capital, operating and other allowable
project costs including the NPL costs, the Contractor parties will receive 30%
of Profit Oil (net 15% to us). The allocation of a share of production to the
State, however, relieves the Contractor parties of all obligations they would
otherwise have to pay the Republic of Georgia for taxes, duties and levies
related to activities covered by the Samgori PSC.
 
     Under the Samgori PSC, Georgian Oil as the State representative in the
contract is entitled to receive up to 250,000 tons (approximately 1.6 million
barrels) of oil ("Base Level Oil") from a maximum of 50% per calendar quarter of
production when the value of the cumulative Cost Recovery Oil (production used
for Cost Recovery), cumulative Profit Oil and cumulative Profit Natural Gas (as
such term is defined in the Samgori PSC) delivered to the Contractor parties
exceeds the cumulative allowable capital, operating and other project
 
                                        3

 
costs including finance costs associated with the Samgori Field and exploration
in Block XI(B) and the NPL costs. While Base Level Oil is being delivered to
Georgian Oil, the Contractor parties will continue to be entitled to a maximum
of 50% of the remaining Profit Oil. The Base Level Oil is an estimate of the
amount of oil that Georgian Oil would have expected to produce from the contract
area had the State not come to a contractual arrangement with NPL in 1996.
 
     Upon completion of the acquisition of an interest in the Samgori PSC we had
a contractual obligation to issue 4 million shares of CanArgo Common Stock to
Europa Oil Services Limited ("Europa"), an unaffiliated British Virgin Islands
company in connection with a consultancy agreement with Europa in relation to
this acquisition. On April 16, 2004, Europa was issued 4 million restricted
shares of CanArgo common stock in an arms length transaction. A further 12
million shares of CanArgo Common Stock are issuable upon certain production
targets being met from future developments under the Samgori PSC. The common
stock to be issued to Europa has been included in the shares offered for sale
under this prospectus.
 
     On March 23, 2004, we held a special meeting of stockholders at which
stockholders approved an increase in the number of shares of common stock that
the Company is authorized to issue from 150,000,000 to 300,000,000 shares.
 
     On April 1, 2004 one of our subsidiaries, Ninotsminda Oil Company Limited
("NOC") entered into a new 12-month crude oil sales agreement with an existing
buyer, Sveti Limited, for the sale of up to 7,500 metric tons (approximately
57,000 barrels) of oil per month ("Sveti Agreement"). The Sveti Agreement
replaces two existing crude oil sales agreements pursuant to which Sveti Limited
had provided $2.3 million security for the right to lift oil under such
agreements (the "Security Payment"). The Security Payment is extended to the new
Sveti Agreement where it remains at NOC's disposal for the contract period. At
the end of the 12 months, the Security Payment will be repaid through the
delivery of additional crude oil equal to the value of the security.
 
     On April 21, 2004, the common stock began trading on the American Stock
Exchange under the symbol "CNR".
 

     On April 26, 2004, we entered into a loan and warrant agreement with an
unaffiliated party, Salahi Ozturk in an arms length transaction. Upon execution
of the agreement, Mr. Ozturk advanced us a loan of $1,000,000 which was drawn
down on May 12, 2004 in one tranche, for the purpose of funding our short-term
working capital requirements including the acquisition of long lead equipment.
Interest is payable on the loan at the rate of 7.5% per annum. The term of the
loan was 6 months from the date of draw down. As a result of our completing an
equity offering on September 22, 2004 we repaid this $1 million loan on
September 30, 2004, the parties having agreed to the extension of the repayment
obligation to such date. In consideration for Mr Ozturk advancing the loan, we
issued to Mr Ozturk a warrant to subscribe for 1,000,000 shares of CanArgo
common stock at an exercise price of $1.05 per share, subject to customary
anti-dilution adjustments. Mr Ozturk can exercise the warrant at any time, for
the period of 5 years from the date of the agreement. As at January 28, 2005,
the warrants remain unexercised. We subsequently entered into a further
agreement with Mr. Ozturk on August 13, 2004 which amended some of the terms of
this loan and warrant agreement. The amendments are described below.

 

     On April 29, 2004, we entered into a loan and warrant agreement with CA
Fiduciary Services Limited, as Settlement Trustees of The SP525A Settlement ("CA
Fiduciary"), an unaffiliated non-U.S. party in an arms length transaction. CA
Fiduciary advanced to us a loan of L170,000 (approximately $307,000) which was
drawn down in one tranche, for the purpose of funding our short-term working
capital requirements including the acquisition of long lead equipment. Interest
is payable on the loan at a rate of 7.5% per annum. The term of the loan was 6
months from the date of draw down. As a result of our completing an equity
offering on September 22, 2004 we repaid this loan on September 28, 2004. In
consideration for CA Fiduciary advancing the loan, we issued to CA Fiduciary a
warrant to subscribe for 300,000 shares of CanArgo common stock at an exercise
price of $1.05 per share. CA Fiduciary can exercise the warrant at any time, for
the period of 5 years from the date of the agreement. As at January 28, 2005,
the warrants remain unexercised. The warrant and the shares of common stock
issuable upon exercise of the warrant are "restricted securities" as defined in
Rule 144 under the Securities Act and the warrant was issued in a transaction
intended to qualify for the exemption

                                        4

 
from registration afforded by Section 4(2) of the Securities Act and Regulation
S promulgated under such Act. The warrant shares have been included in the
shares being registered under the Securities Act pursuant to the Registration
Statement on Form S-3 of which this prospectus forms a part.
 
     On May 5, 2004, the Sveti Agreement was terminated and a new agreement was
concluded with another party, Primrose Financial Group, on the same terms and
conditions with the exception that the monthly quantity was increased to 8,400
metric tons (approximately 64,000 barrels) of oil per month (the "PFG
Agreement"). In accordance with the termination agreement, the Security Payment
shall be deemed to be a deposit payment made in favor of NOC under the terms of
the PFG Agreement and shall be repaid in oil at the end of the contract period
which will be March 2005. The Security Payment remains at NOC's disposal for the
contract period.
 
     On May 18, 2004, we held our annual meeting of stockholders at which: the
incumbent board of directors consisting of David Robson, the Chairman, President
and Chief Executive Officer, and Vincent McDonnell, the Chief Financial Officer
of the Company, respectively, and Messrs. Russ Hammond, Nils Trulsvik and
Michael Ayre, independent directors, were re-elected; the Company's 2004 Long
Term Stock Incentive Plan was approved; and the selection of L J Soldinger
Associates LLC as the Company's auditors for the 2004 fiscal year was ratified.
 
     On May 19, 2004, we signed a promissory note with Cornell whereby Cornell
agreed to advance us the sum of $1,500,000. This amount shall be payable on the
earlier of 180 days from the date of the promissory note or within 60 days from
the date that the Registration Statement on Form S-3 of which this prospectus
forms a part is declared effective. If the promissory note is not repaid in full
when due, interest shall accrue on the outstanding principal owing at the rate
of twelve percent (12%) per annum. At Cornell's option any such interest due was
to originally be paid either in shares of our common stock or in cash. We shall
pay to Cornell a commitment fee of five per cent (5%) of the principal amount of
the promissory note which shall be set-off against the first $75,000 of fees
payable by us to Cornell under the Equity Line of Credit. The promissory note
will become immediately due and payable upon the occurrence of any of the
following: (i) failure to pay the amount of any principal or interest when due
under the promissory note or (ii) if any proceedings under any bankruptcy laws
of the United States of America or under any insolvency, reorganization,
receivership, readjustment of debt, dissolution, liquidation or any similar law
or statute of any jurisdiction are filed by or against us for all or any part of
our property. The proceeds of the advance from Cornell was used by us to order
long lead items for our drilling program in Georgia and for working capital
purposes. In the event this Registration Statement is declared effective, we may
use the net proceeds to be received by us pursuant to takedown under the Equity
Line of Credit to repay this note. In addition, we have the option to repay the
note at any time in cash. We subsequently entered into a further agreement with
Cornell on December 21, 2004 amending the terms of the promissory note. The
amendment is described on page 7.
 
     On May 28, 2004 we held a special meeting of stockholders at which our
stockholders approved a proposal authorizing us to issue up to 75 million shares
of common stock in a proposed offering of our common stock.
 
     Also on May 28, 2004 we announced that pursuant to a signed agreement
between CanArgo Acquisition Corporation, our wholly owned subsidiary, and
Stanhope Solutions Ltd., we had completed a transaction to sell our interest in
the Bugruvativske Field in Ukraine by disposing of our wholly owned subsidiary
Lateral Vector Resources, Inc. for $2 million. We received $250,000 as an
initial payment and will receive the remaining $1,750,000 based upon if certain
production targets are achieved on the project.
 
     On June 2, 2004, we announced that we had signed a contract with WEUS
Holding Inc., a subsidiary of Weatherford International, Ltd., for Weatherford
to supply Under Balanced Coiled Tubing Drilling ("UBCTD") services to our
projects in Georgia ("WEUS Contract").
 
     Under the terms of the WEUS Contract, Weatherford will supply and operate a
UBCTD unit to be used on a program of up to 14 horizontal wellbores on our
Ninotsminda and Samgori Fields in Georgia. In addition the unit will be used to
deepen and test our recent Manavi M11 Cretaceous oil discovery. Once the
equipment
 
                                        5

 
has been mobilized under the terms of the WEUS Contract, we will be committed to
a two well drilling program.
 
     On June 8, 2004, we announced that we had finalized the registration of an
interest in BN Munai LLP in Kazakhstan. The interest was acquired through an
associated company, Tethys Petroleum Investments Limited ("TPI") in which we are
currently a 45% shareholder. The transaction resulted in TPI's wholly owned
subsidiary, Tethys Kazakhstan Limited, becoming officially registered as the
owner of a 70% interest in BN Munai LLP.
 
     On June 22, 2004, we announced that Ninotsminda Oil Company Limited had
signed a contract with Great Wall Drilling Company ("GWDC") of China to supply
drilling services for the drilling of the first appraisal well (M12) on the
Manavi discovery in Georgia with an option to drill further wells. Under the
terms of the contract, GWDC will provide a modern 2,000 hp self-powered drilling
rig equipped with "top drive" and triplex mud pumps together with drilling
services.
 
     On August 13, 2004, we entered into a further agreement with Mr. Salahi
Ozturk. Under the agreement, Mr Ozturk agreed to advance us a further loan in
the sum of $1,000,000 as soon as practicable (the "Additional Loan") and agreed
to amend the terms of his original loan and warrant agreement with us dated
April 26, 2004 (the "Original Loan") pursuant to the terms of an amended and
restated loan and warrant agreement ("Amended Agreement"). We entered into the
Amended Agreement with Mr. Ozturk on August 27, 2004. The Additional Loan is
repayable two years and one day from the date of draw down by the Company of the
Additional Loan or any part thereof unless it has previously been converted.
Corporate finance fees of $50,000 were paid in respect of the Additional Loan.
Interest is payable on the Additional Loan at a rate of 7.5% per annum. The
first interest payment date is December 31, 2004 and shall include interest on
the Original Loan for the period from April 26, 2004 until December 31, 2004 and
interest on the Additional Loan for the period from August 27, 2004 until such
first interest payment date. The Additional Loan is convertible into shares of
common stock ("Conversion Stock") at a price of $0.69 per share, subject to
customary anti-dilution adjustments, which is equivalent to a premium of 15%
above the market price of $0.60 in effect when the agreement was reached. The
Company has the option to force conversion of the Additional Loan if the
Company's share price exceeds 160% of $0.60 (or $0.96 per share) for a period of
20 consecutive trading days. No conversion is possible for a period of one year
from the date of the Amended Agreement. Under the terms of the Amended
Agreement, in consideration for Mr. Ozturk advancing the two loans, we have
issued to him a new replacement warrant to subscribe for 2,000,000 shares of
common stock at an exercise price of 5% above the market price of $0.60 (or
$0.63 per share), subject to customary anti-dilution adjustments, and the
original warrant to subscribe for 1,000,000 shares of CanArgo common stock at an
exercise price of $1.05 issued in April 2004 has been cancelled. The new warrant
is exercisable for a period of 4 years commencing one year from the date of the
Amended Agreement. The warrants are transferable only to non-US persons and may
only be exercised outside the US. The warrant, the shares of common stock
issuable upon exercise of the warrant and the shares of Conversion Stock are
"restricted securities" as defined in Rule 144 under the Securities Act and the
warrant was issued and the shares of common stock issuable upon exercise of the
warrant and the shares of Conversion Stock will be issued in transactions
intended to qualify for the exemption from registration afforded by Section 4(2)
of the Securities Act and Regulation S promulgated under the Act. Under the
terms of the Amended Agreement, we undertake to use our best efforts to register
for resale the Conversion Stock under the Securities Act as soon as possible as
well as the shares of our common stock issued upon exercise of the warrants if
they are not freely tradeable and are restricted at the date of issue. The term
of the Original Loan entered into in April 2004 was extended to one year and one
day from the date of draw down by us of the Original Loan or any part thereof.
As a result of our completing our equity offering on September 22, 2004 we
repaid the Original Loan in full on September 30, 2004, the parties having
agreed to the extension of the repayment obligation to such date.
 
     On September 22, 2004, we successfully concluded a global public offering
of 75,000,000 shares of common stock at a price of $.50 per share (approximately
NOK 3.46 per share). Gross proceeds from the offering were $37.5 million
(approximately 260 million NOK) and $35.25 million (approximately 244 million
NOK) after the payment of commissions but before the payment of the expenses of
the offering aggregating $4,095,107.
                                        6

 
     On September 30, 2004, we announced that we had increased our interest in
CanArgo Norio Limited ("CNL") by buying out NPET Oil Limited, a Cypriot
corporation, who held a 25% interest in CNL. As a result of the transaction CNL
has become a wholly owned subsidiary of CanArgo. We issued 6 million restricted
common shares in connection with this transaction to NPET Oil Limited in a
transaction intended to qualify for the exemption from registration afforded by
Section 4(2) of the Securities Act and Regulation S promulgated under such Act.
The shares of common stock issued to NPET Oil Limited are being registered for
resale under the Registration Statement of which this prospectus forms a part.
 
     As described on page 5, on December 21, 2004, we entered into a letter of
amendment with Cornell amending the terms of the promissory note. Under the
terms of the letter of amendment we and Cornell agreed that any sums due in
respect of interest accrued on the promissory note shall be paid in cash only.
 

     On January 28, 2005, we announced that Ninotsminda Oil Company Limited
("NOC"), our operating subsidiary responsible for the Manavi area, had signed a
new contract with Saipem S.p.A. ("Saipem") of Italy on January 27, 2005 to
supply drilling services for the drilling of a first appraisal well (M12) on the
Manavi oil discovery in Georgia.

 

     As described above, NOC previously signed a contract with GWDC of China to
drill the M12 appraisal well but due to a delay in mobilizing the rig, we
elected to conclude a new agreement with Saipem which currently has a rig
available.

 

     Under the terms of the Contract, Saipem will supply the IDECO E-2100 AZ
drilling rig complete with crew to drill the M12 appraisal well on a day rate
basis to a planned total depth of 5,000 meters (16,404 feet) targeting the
Cretaceous formation. The contract includes an option in NOC to use Saipem to
drill up to two additional wells. The rig and associated equipment will now be
mobilized from Astrakhan in Southern Russia to Georgia where it is expected to
commence operations on the M12 appraisal well by the end of April or in early
May.

 
                                        7

 
                                  RISK FACTORS
 
     An investment in our common stock is subject to significant risks and
uncertainties which may result in a loss of all or a part of your investment.
You should carefully consider the risks described below, as well as all other
information contained or incorporated by reference in this prospectus and any
applicable prospectus supplements, before investing in our common stock. The
risks below are not the only ones facing the Company. Additional risks not
presently known to us or that we currently deem immaterial may also impair our
business operations and adversely affect the price of our shares.
 
RISKS ASSOCIATED WITH OUR BUSINESS
 
  WE HAVE EXPERIENCED LOSSES FROM OPERATIONS.
 
     We have experienced recurring losses. For the fiscal years ended December
31, 2003, 2002, 2001, 2000 and 1999, we recorded net losses of $7,322,000,
$5,328,000, $13,218,000, $2,151,000 and $8,473,000, respectively. The loss in
2003 included a writedown in our carrying value of the Bugruvativske Field in
Ukraine of $4,790,000 to reflect the estimated recoverable amount from disposal,
a write-off of the $1,275,000 debit balance in minority interest in Georgian
American Oil Refinery ("GAOR") due to a change in the intentions of our minority
interest owner and plan to dispose of the asset, and a generator unit was
impaired by $80,000 to reflect its fair value less cost to sell. Impairments of
oil and gas properties, ventures and other assets in prior years include
writedowns of $1,600,000 in 2002, $11,160,000 in 2001, $0 in 2000 and $5,694,000
in 1999. No assurance can be given, however, that we will not experience
operating losses or additional writedowns in the future.
 
 OUR ABILITY IN THE LONG TERM TO PURSUE OUR ACTIVITIES IS DEPENDENT ON OUR
 ABILITY TO GENERATE CASH FLOWS.
 
     Our continued ability in the long term to pursue our principal activities
of acquiring interests in and developing oil and gas fields is dependent upon
generating funds from internal sources including the sale of certain non-core
assets, external sources and, ultimately, maintaining sufficient positive cash
flows from operating activities. Our financial statements have been prepared on
a basis which assumes that operating cash flows are realized and/or proceeds
from additional financings and/or the sale of non-core assets are received to
meet our cash flow needs. As a result of our recently concluded public offering
and based upon the current level of operations, we believe that, coupled with
our cash flow from operations as well as borrowing capabilities we will have
adequate capital to meet our anticipated requirements for working capital,
capital expenditures, interest payments and scheduled principal payments for the
next twenty four months. However, development of the oil and gas properties and
ventures in which we have interests involves multi-year efforts and substantial
cash expenditures. Full development of these properties will require the
availability of substantial funds from internal and/or external sources. No
assurance can be given that we will be able to secure such funds or, if
available, such funds can be obtained on commercially reasonable terms.
 
 OUR CURRENT OPERATIONS ARE DEPENDENT ON THE SUCCESS OF THE NINOTSMINDA AND
 SAMGORI FIELDS AND OUR GEORGIAN EXPLORATION ACTIVITIES.
 
     To date, we have directed substantially all of our efforts and most of our
available funds to the development of the Ninotsminda Field in the Republic of
Georgia, exploration in that area and some ancillary activities closely related
to the Ninotsminda Field project. This decision is based on management's
assessment of the promise of the Ninotsminda Field area. However, our focus on
the Ninotsminda Field has over the past several years resulted in overall losses
for us and we only achieved profitability in the last quarter of 2003. We cannot
assure investors that the exploration and development plans for the Ninotsminda
Field will be successful. For example, the Ninotsminda Field may not produce
sufficient quantities of oil and gas and at sufficient rates to justify the
investment we have made and are planning to make in the Field, and we may not be
able to produce the oil and gas at a sufficiently low cost or to market the oil
and gas produced at a sufficiently high price to generate a positive cash flow
and a profit. Furthermore, the maintenance of production levels from the
Ninotsminda Field is subject to regular workover operations on the wells due to
the friable nature of the reservoir and the need to remove sediment build-up
from the production interval. Such
 
                                        8

 
operations will add additional costs and may not always be successful. In April
2004, we announced that we had concluded the acquisition of a 50% interest in
Samgori (Block XI(B)) Production Sharing Contract (the "Samgori PSC") in the
Republic of Georgia. While management believes that this Production Sharing
Contract area, which includes the Samgori, Patardzeuli and South Dome Oil Fields
(collectively, the "Samgori Field"), could provide a significant opportunity for
CanArgo, both for short-term oil development and for exploration upside, we
cannot assure investors that the development and appraisal plans for the Samgori
Field and license area will be successful. Our Georgian exploration program is
an important factor for future success, and this program may not be successful,
as it carries substantial risk. See "Our oil and gas activities involve risks,
many of which are beyond our control" below for a description of a number of
these potential risks and losses. In accordance with customary industry
practices, we maintain insurance against some, but not all, of such risks and
some, but not all, of such losses. The occurrence of an event not fully covered
by insurance could have a material adverse effect on our financial condition and
results of operations.
 
 OUR OPERATION OF THE NINOTSMINDA FIELD AND SAMGORI FIELD IS GOVERNED BY
 PRODUCTION SHARING CONTRACTS WHICH MAY BE SUBJECT TO CERTAIN LEGAL
 UNCERTAINTIES.
 
     Our principal business and assets are derived from production sharing
contracts in the Republic of Georgia. The legislative and procedural regimes
governing production sharing agreements and mineral use licenses in Georgia have
undergone a series of changes in recent years resulting in certain legal
uncertainties. Our production sharing agreements and mineral use licenses,
entered into prior to the introduction in 1999 of a new Petroleum Law governing
such agreements have not, as yet, been amended to reflect or ensure compliance
with current legislation. As a result, despite references in the current
legislation grandfathering the terms and conditions of our production sharing
contracts, conflicts between the interpretation of our production sharing
contracts and mineral use licenses and current legislation could arise. Such
conflicts, if they arose, could cause an adverse effect on our rights under the
production sharing contracts.
 
 WE MAY ENCOUNTER DIFFICULTIES IN ENFORCING OUR TITLE TO OUR PROPERTIES.
 
     Since all of our oil and gas interests are currently held in countries
where there is no private ownership of oil and gas in place, good title to our
interests is dependent on the validity and enforceability of the governmental
licenses and production sharing contracts and similar contractual arrangements
that we enter into with government entities, either directly or indirectly. As
is customary in such circumstances, we perform a minimal title investigation
before acquiring our interests, which generally consists of conducting due
diligence reviews and in certain circumstances securing written assurances from
responsible government authorities or legal opinions. We believe that we have
satisfactory title to such interests in accordance with standards generally
accepted in the crude oil and natural gas industry in the areas in which we
operate. Our interests in properties are subject to royalty interests, liens
incident to operating agreements, liens for current taxes and other burdens,
none of which we believe materially interferes with the use of, or affects the
value of, such interests. However, as is discussed elsewhere, there is no
assurance that our title to its interests will be enforceable in all
circumstances due to the uncertain nature and predictability of the legal
systems in some of the countries in which we operate.
 
 WE MAY BE UNABLE TO FINANCE OUR OIL AND GAS PROJECTS.
 
     Our long term ability to finance most of our present oil and gas projects
and other ventures according to present plans is dependent upon obtaining
additional funding. An inability to obtain financing in the future could require
us to scale back or abandon part or all of our future project development,
capital expenditure, production and other plans. The availability of equity or
debt financing to us or to the entities that are developing projects in which we
have interests is affected by many factors, including:
 
     - world and regional economic conditions;
 
     - the state of international relations;
 
     - the stability and the legal, regulatory, fiscal and tax policies of
       various governments in areas in which we have or intend to have
       operations;
                                        9

 
     - fluctuations in the world and regional price of oil and gas and in
       interest rates;
 
     - the outlook for the oil and gas industry in general and in areas in which
       we have or intend to have operations; and
 
     - competition for funds from possible alternative investment projects.
 
     Potential investors and lenders will be influenced by their evaluations of
us and our projects, including their technical difficulty, and comparison with
available alternative investment opportunities.
 
 OUR OPERATIONS MAY BE SUBJECT TO THE RISK OF POLITICAL INSTABILITY, CIVIL
 DISTURBANCE AND TERRORISM.
 
     Our principal oil and gas properties and activities are in the Republic of
Georgia, which is located in the former Soviet Union. Operation and development
of our assets are subject to a number of conditions endemic to former Soviet
Union countries, including political instability. The present governmental
arrangements in countries of the former Soviet Union in which we operate were
established relatively recently, when they replaced communist regimes. If they
fail to maintain the support of their citizens, other institutions, including a
possible reversion to totalitarian forms of government, could replace these
governments. As recent developments in Georgia have illustrated, the national
governments in these countries often must deal, from time to time, with civil
disturbances and unrest which may be based on religious, tribal and local and
regional separatist considerations. Our operations typically involve joint
ventures or other participatory arrangements with the national government or
state-owned companies. The production sharing contracts covering the Ninotsminda
and Samgori Fields are examples of such arrangements. As a result of such
dependency on government participants, our operations could be adversely
affected by political instability, terrorism, changes in government
institutions, personnel, policies or legislation, or shifts in political power.
There is also the risk that governments could seek to nationalize, expropriate
or otherwise take over our oil and gas properties either directly or through the
enactment of laws and regulations which have an economically confiscatory
result. We are not insured against political or terrorism risks because
management deems the premium costs of such insurance to be currently
prohibitively expensive.
 
 WE FACE THE RISK OF SOCIAL, ECONOMIC AND LEGAL INSTABILITY IN THE COUNTRIES IN
 WHICH WE OPERATE.
 
     The political institutions of the countries that were a part of the former
Soviet Union have recently become more fragmented, and the economic institutions
of these countries have recently converted to a market economy from a planned
economy. New laws have recently been introduced, and the legal and regulatory
regimes in such regions are often vague, containing gaps and inconsistencies,
and are constantly subject to amendment. Application and enforceability of these
laws may also vary widely from region to region within these countries. Due to
this instability, former Soviet Union countries are subject to certain
additional risks including the uncertainty as to the enforceability of
contracts. Social, economic and legal instability have accompanied these changes
due to many factors which include:
 
     - low standards of living;
 
     - high unemployment;
 
     - undeveloped and constantly changing legal and social institutions; and
 
     - conflicts within and with neighboring countries.
 
     This instability could make continued operations difficult or impossible.
In early 2002, the Georgian government requested assistance from the United
States to combat terrorism in the Pankisi Gorge, a region of Georgia bordering
the separatist Chechnya region of Russia. Although this situation is now
apparently calm, the region remains potentially unstable with the risk of
further terrorist activity. Recently Georgia has democratically elected a new
President following a popular revolt against the previous administration in
November 2003 and has successfully quelled a potential separatist uprising in
one of its regions. Although the new administration has made public statements
supporting foreign investment in Georgia, and specific written support for our
activities, there can be no guarantee that this will continue, or that these
changes will not have
 
                                        10

 
an adverse affect on our operations. There are also some separatist areas within
Georgia that may cause instability and potentially adversely affect our
activities.
 
 WE FACE AN INADEQUATE OR DETERIORATING INFRASTRUCTURE IN THE COUNTRIES IN WHICH
 WE OPERATE.
 
     Countries in the former Soviet Union often either have underdeveloped
infrastructures or, as a result of shortages of resources, have permitted
infrastructure improvements to deteriorate. The lack of necessary infrastructure
improvements can adversely affect operations. For example, we have, in the past,
had to suspend drilling and testing procedures due to the lack of a reliable
power supply.
 
 WE MAY ENCOUNTER CURRENCY RISKS IN THE COUNTRIES IN WHICH WE OPERATE.
 
     Payment for oil and gas products sold in former Soviet Union countries may
be in local currencies. Although we currently sell our oil principally for U.S.
dollars, we may not be able to continue to demand payment in hard currencies in
the future. Most former Soviet Union country currencies are presently
convertible into U.S. dollars, but there is no assurance that such
convertibility will continue. Even if currencies are convertible, the rate at
which they convert into U.S. dollars is subject to fluctuation. In addition, the
ability to transfer currencies into or out of former Soviet Union countries may
be restricted or limited in the future. We may enter into contracts with
suppliers in former Soviet Union countries to purchase goods and services in
U.S. dollars. We may also obtain from lenders credit facilities or other debt
denominated in U.S. dollars. If we cannot receive payment for oil and oil
products in U.S. dollars and the value of the local currency relative to the
U.S. dollar deteriorates, we could face significant negative changes in working
capital.
 
 WE MAY ENCOUNTER TAX RISKS IN THE COUNTRIES IN WHICH WE OPERATE.
 
     Countries in the former Soviet Union frequently add to or amend existing
taxation policies in reaction to economic conditions including state budgetary
and revenue shortfalls. Since we are dependent on international operations,
specifically those in Georgia, we are subject to changing taxation policies
including the possible imposition of confiscatory excess profits, production,
remittance, export and other taxes. While we are not aware of any recent or
proposed tax changes which could materially adversely affect our operations,
such changes could occur although we have negotiated economic stabilization
clauses in our production sharing contracts in Georgia and all current taxes are
payable from the State's share of petroleum produced under the production
sharing contracts.
 
RISKS ASSOCIATED WITH OUR INDUSTRY.
 
 WE MAY BE REQUIRED TO WRITE-OFF UNSUCCESSFUL PROPERTIES AND PROJECTS.
 
     In order to realize the carrying value of our oil and gas properties and
ventures, we must produce oil and gas in sufficient quantities and then sell
such oil and gas at sufficient prices to produce a profit. We have a number of
unevaluated oil and gas properties. The risks associated with successfully
developing unevaluated oil and gas properties are even greater than those
associated with successfully continuing development of producing oil and gas
properties, since the existence and extent of commercial quantities of oil and
gas in unevaluated properties have not been established. We could be required in
the future to write-off our investments in additional projects, including the
Ninotsminda Field project, if such projects prove to be unsuccessful.
 
 OUR OIL AND GAS ACTIVITIES INVOLVE RISKS, MANY OF WHICH ARE BEYOND OUR CONTROL.
 
     Our exploration, development and production activities are subject to a
number of factors and risks, many of which may be beyond our control. We must
first successfully identify commercial quantities of oil and gas, which is
inherently subject to many uncertainties. Thereafter, the development of an oil
and gas deposit can be affected by a number of factors which are beyond the
operator's control, such as:
 
     - unexpected or unusual geological conditions;
 
     - the recoverability of the oil and gas on an economic basis;
                                        11

 
     - the availability of infrastructure and personnel to support operations;
 
     - labor disputes;
 
     - local and global oil prices; and
 
     - government regulation and legal and political uncertainties.
 
     Our activities can also be affected by a number of hazards, such as:
 
     - natural phenomena, such as bad weather and earthquakes;
 
     - operating hazards, such as fires, explosions, blow-outs, pipe failures
       and casing collapses; and
 
     - environmental hazards, such as oil spills, gas leaks, ruptures and
       discharges of toxic gases.
 
     Any of these factors or hazards could result in damage, losses or liability
for us. There is also an increased risk of some of these hazards in connection
with operations that involve the rehabilitation of fields where less than
optimal practices and technology were employed in the past, as was often the
case in the countries that were part of the former Soviet Union. We do not
purchase insurance covering all of the risks and hazards or all of our potential
liability that are involved in oil and gas exploration, development and
production.
 
 WE MAY HAVE CONFLICTING INTERESTS WITH OUR PARTNERS.
 
     Joint venture, acquisition, financing and other agreements and arrangements
must be negotiated with independent third parties and, in some cases, must be
approved by governmental agencies. These third parties generally have objectives
and interests that may not coincide with ours and may conflict with our
interests. Unless we are able to compromise these conflicting objectives and
interests in a mutually acceptable manner, agreements and arrangements with
these third parties will not be consummated. We may not have a majority of the
equity in the entity that is the licensed developer of some projects that we may
pursue in the countries that were a part of the former Soviet Union, even though
we may be the designated operator of the oil or gas field. In these
circumstances, the concurrence of co-venturers may be required for various
actions. Other parties influencing the timing of events may have priorities that
differ from ours, even if they generally share our objectives. Demands by or
expectations of governments, co-venturers, customers, and others may affect our
strategy regarding the various projects. Failure to meet such demands or
expectations could adversely affect our participation in such projects or our
ability to obtain or maintain necessary licenses and other approvals.
 
 OUR OPERATING DIRECT AND INDIRECT SUBSIDIARIES AND JOINT VENTURES REQUIRE
 GOVERNMENTAL REGISTRATION.
 
     Operating entities in various foreign jurisdictions must be registered by
governmental agencies, and production licenses for development of oil and gas
fields in various foreign jurisdictions must be granted by governmental
agencies. These governmental agencies generally have broad discretion in
determining whether to take or approve various actions and matters. In addition,
the policies and practices of governmental agencies may be affected or altered
by political, economic and other events occurring either within their own
countries or in a broader international context.
 
 WE ARE AFFECTED BY CHANGES IN THE MARKET PRICE OF OIL AND GAS.
 
     Prices for oil and natural gas and their refined products are subject to
wide fluctuations in response to a number of factors which are beyond our
control, including:
 
     - global and regional changes in the supply and demand for oil and natural
       gas;
 
     - actions of the Organization of Petroleum Exporting Countries;
 
     - weather conditions;
 
     - domestic and foreign governmental regulations;
 
     - the price and availability of alternative fuels;
                                        12

 
     - political conditions and terrorist activity in the Middle East, Central
       Asia and elsewhere; and
 
     - overall global and regional economic conditions.
 
     A reduction in oil prices can affect the economic viability of our
operations. There can be no assurance that oil prices will be at a level that
will enable us to operate at a profit. We may also not benefit from rapid
increases in oil prices as the market for the levels of crude oil produced in
Georgia by Ninotsminda Oil Company Limited can in such an environment be
relatively inelastic. Contract prices are often set at a specified price
determined with reference to world market prices (often based on the average of
a number of quotations for a "marker" crude including Dated Brent Mediterranean
or Urals Mediterranean at the time of sale) subject to appropriate discounts for
transportation and other charges which can vary from contract to contract.
 
 OUR ACTUAL OIL AND GAS PRODUCTION COULD VARY SIGNIFICANTLY FROM RESERVE
 ESTIMATES.
 
     Estimates of oil and natural gas reserves and their values by petroleum
engineers are inherently uncertain. These estimates are based on professional
judgments about a number of elements:
 
     - the amount of recoverable crude oil and natural gas present in a
       reservoir;
 
     - the costs that will be incurred to produce the crude oil and natural gas;
       and
 
     - the rate at which production will occur.
 
     Reserve estimates are also based on evaluations of geological, engineering,
production and economic data. The data can change over time due to, among other
things:
 
     - additional development activity;
 
     - evolving production history; and
 
     - changes in production costs, market prices and economic conditions.
 
     As a result, the actual amount, cost and rate of production of oil and gas
reserves and the revenues derived from sale of the oil and gas produced in the
future will vary from those anticipated in the reports on the oil and gas
reserves prepared by independent petroleum consultants at any given point in
time. The magnitude of those variations may be material. The rate of production
from crude oil and natural gas properties declines as reserves are depleted.
Except to the extent we acquire additional properties containing proved
reserves, conduct successful exploration and development activities or, through
engineering studies, identify additional productive zones in existing wells or
secondary recovery reserves, our proved reserves will decline as reserves are
produced. Future crude oil and natural gas production is therefore highly
dependent upon our level of success in replacing depleted reserves.
 
 OUR OIL AND GAS OPERATIONS ARE SUBJECT TO EXTENSIVE GOVERNMENTAL REGULATION.
 
     Governments at all levels, national, regional and local, regulate oil and
gas activities extensively. We must comply with laws and regulations which
govern many aspects of our oil and gas business, including:
 
     - exploration;
 
     - development;
 
     - production;
 
     - refining;
 
     - marketing;
 
     - transportation;
 
     - occupational health and safety;
 
                                        13

 
     - labor standards; and
 
     - environmental matters.
 
     We expect the trend towards more burdensome regulation of our business to
result in increased costs and operational delays. This trend is particularly
applicable in developing economies, such as those in the countries that were a
part of the former Soviet Union where we have our principal operations. In these
countries, the evolution towards a more developed economy is often accompanied
by a move towards the more burdensome regulations that typically exist in more
developed economies.
 
 WE FACE SIGNIFICANT COMPETITION.
 
     The oil and gas industry, including the refining and marketing of crude oil
products, is highly competitive. Our competitors include integrated oil and gas
companies, government owned oil companies, independent oil and gas companies,
drilling and income programs, and wealthy individuals. Many of our competitors
are large, well-established, well-financed companies. Because of our small size
and lack of financial resources, we may not be able to compete effectively with
these companies.
 
 OUR PROFITABILITY MAY BE SUBJECT TO CHANGES IN INTEREST RATES.
 
     Our profitability may also be adversely affected during any period of
unexpected or rapid increase in interest rates. While we currently have only
limited amounts of long term debt, increases in interest rates may adversely
affect our ability to raise debt capital to the extent that our income from
operations will be insufficient to cover debt service.
 
RISKS ASSOCIATED WITH OUR STOCK.
 
 LIMITED TRADING VOLUME IN OUR COMMON STOCK MAY CONTRIBUTE TO PRICE VOLATILITY.
 
     Our common stock was only recently listed for trading on the American Stock
Exchange. Prior to the listing on the American Stock Exchange, our stock was
traded on the Over the Counter Bulletin Board ("OTCBB") in the United States and
on the Oslo Stock Exchange. Following the listing on the American Stock
Exchange, our stock is traded both on the American Stock Exchange and on the
Oslo Stock Exchange. During the twelve months ended December 31, 2003, the
average daily trading volume for our common stock on the Oslo Stock Exchange as
reported by Yahoo was 1,226,611 shares and on the OTCBB as reported by Bloomberg
was 65,874 shares. As a relatively small company with a limited market
capitalization, even if our shares are more widely disseminated, we are
uncertain as to whether a more active trading market in our common stock will
develop. As a result, relatively small trades may have a significant impact on
the price of our common stock.
 
 THE PRICE OF OUR COMMON STOCK MAY BE SUBJECT TO WIDE FLUCTUATIONS.
 
     The market price of our common stock could be subject to wide fluctuations
in response to quarterly variations in our results of operations, changes in
earnings estimates by analysts, changing conditions in the oil and gas industry
or changes in general market, economic or political conditions.
 
 WE DO NOT ANTICIPATE PAYING CASH DIVIDENDS IN THE FORESEEABLE FUTURE.
 
     We have not paid any cash dividends to date on the common stock and there
are no plans for such dividend payments in the foreseeable future.
 
 WE HAVE A SIGNIFICANT NUMBER OF SHARES ELIGIBLE FOR FUTURE SALE.
 

     At January 28, 2005, we had 195,119,320 shares of common stock outstanding
of which 940,210 shares were held by affiliates. In addition, at January 28,
2005, we had 45,270 shares issuable upon exchange of CanArgo Oil & Gas Inc.
Exchangeable Shares without receipt of further consideration, 10,348,833 shares
of common stock subject to outstanding options granted under certain stock
option plans (of which

 
                                        14

 

6,252,833 shares were vested at January 28, 2005), 2,550,000 shares issuable
upon exercise of outstanding warrants and up to 4,789,419 shares of common stock
reserved for issuance under our existing option plans and up to 41,636,775
shares reserved for issuance in connection with certain existing contractual
arrangements, including 23,000,000 shares to be issued pursuant to the Equity
Line of Credit with Cornell. All of the shares of common stock held by
affiliates are restricted or control securities under Rule 144 promulgated under
the Securities Act. The shares of common stock issuable upon exercise of the
stock options have been registered under the Securities Act. In addition, an
aggregate of 33,330,074 shares of common stock issued and issuable pursuant to
certain contractual arrangements, including under the Equity Line of Credit, are
subject to certain registration rights and, therefore, will be eligible for
resale in the public market after a registration statement covering such shares
has been declared effective. Sales of shares of common stock under Rule 144 or
pursuant to a registration statement could have a material adverse effect on the
price of our common stock and could impair our ability to raise additional
capital through the sale of its equity securities. For a description of the
Equity Line of Credit see below.

 
 OUR ABILITY TO MAKE FUTURE STOCK ISSUANCES AND THE PROVISIONS OF DELAWARE LAW
 COULD HAVE ANTI-TAKEOVER EFFECTS.
 
     Our board of directors may at any time issue additional shares of preferred
stock and common stock without any prior approval by the stockholders, which
might impair or impede a third party from making an offer to acquire us. Holders
of outstanding shares have no preemptive right to purchase a pro rata portion of
additional shares of common or preferred stock issued by us. In addition, the
provisions of Section 203 of the Delaware General Corporation Law, to which we
are subject, places certain restrictions on third parties who seek to effect a
business combination with a company opposed by our board of directors. See the
section entitled "Section 203 of Delaware General Corporation Law" in this
prospectus.
 
RISKS ASSOCIATED WITH THIS OFFERING
 
     As of the date that this registration statement is declared effective, up
to $20 million worth of our common stock may be issued under the Equity Line of
Credit.
 

     - Cornell will receive a substantial discount to the market price of our
       common stock. The level of the discount will vary depending on the market
       price of our stock and the amount drawn down under the Equity Line of
       Credit. For example, on the basis of the average high and low price for
       common stock as reported on the American Stock Exchange on January 27,
       2005 of $1.37, Cornell will receive a total discount of 13.87% which
       comprises (1) a 3% discount to the our Market Price as calculated in the
       Equity Line of Credit agreement; (2) the retention by Cornell of 5% of
       each advance under the Equity Line of Credit; and (3) a commitment fee of
       5.87%. The commitment fee comprises $10,000 in cash (paid in two
       tranches) and 850,000 shares of CanArgo common stock (issued in three
       tranches). The 850,000 shares of common stock issued in respect of the
       commitment fee represents nearly 4% of the estimated 23 million shares of
       common stock that may be issued by us under the Equity Line of Credit.
       These discounted sales could cause the price of our common stock to
       decline.

 
     - The issuance and sale of shares of our common stock to Cornell pursuant
       to the Equity Line of Credit will likely result in substantial dilution
       to the interests of stockholders. In addition, for a given advance we
       will need to issue a greater number of shares of common stock under the
       Equity Line of Credit as our stock price declines. If our stock is lower,
       then our existing stockholders would experience greater dilution. As a
       result, our net income per share could decrease in future periods, and
       the market price of our common stock would decline.
 
                                        15

 

     - The continuously adjustable price feature of our Equity Line of Credit
       could require us to issue a substantially greater number of shares, which
       will cause dilution to existing stockholders. Our obligation to issue
       shares upon receipt of an advance pursuant to the Equity Line of Credit
       is essentially limitless. The following is an example of the amount of
       shares of our common stock issuable in connection with a single advance
       of $600,000 (the maximum) under the Equity Line of Credit, based upon the
       lowest volume weighted average price 25%, 50% and 75% below the volume
       weighted average price for our stock on the Oslo Stock Exchange on
       January 27, 2005 of $1.37.

 



                        WITH     NUMBER OF      % OF
% BELOW   PRICE PER   DISCOUNT    SHARES     OUTSTANDING
MARKET    SHARE ($)    OF 3%     ISSUABLE       STOCK
-------   ---------   --------   ---------   -----------
                                 
  25%       1.03        1.00       600,000      0.31
  50%       0.69        0.67       895,522      0.46
  75%       0.34        0.33     1,818,182      0.93


 
      As illustrated, the number of shares of common stock issuable in
      connection with an advance under the Equity Line of Credit will increase
      if the lowest volume weighted price of our stock declines, which will
      cause dilution to our existing stockholders.
 
     - The significant downward pressure on the price of our common stock caused
       by the sale of significant amounts of common stock under the Equity Line
       of Credit could encourage short sales by third parties. Up to $20 million
       worth of our common stock may be issued under the Equity Line of Credit.
       Such an event could place further downward pressure on the price of our
       common stock. This is especially the case if the shares being placed into
       the market exceed the market's ability to take up the increased stock or
       if the Company has not performed in such a manner to show that the equity
       funds raised will be used to grow the Company. Such an event could place
       further downward pressure on the price of common stock. Under the terms
       of our Equity Line of Credit the Company may request numerous draw downs
       pursuant to the terms of the equity line. Even if we use the equity line
       to grow our revenues and profits or invest in assets which are materially
       beneficial to us the opportunity exists for short sellers and others to
       contribute to the future decline of our stock price. If there are
       significant short sales of stock, the price decline that would result
       will cause the share price to decline further which in turn may cause
       long holders of the stock to sell their shares thereby contributing to
       sales of our common stock in the market. If there is an imbalance on the
       sell side of the market for the stock the price will decline. If this
       occurs, the number of shares of our common stock that is issuable
       pursuant to the Equity Line of Credit will increase, which will
       materially dilute existing stockholders' equity and voting rights.
 
     - The selling stockholders named herein have informally indicated that they
       intend to sell all of the shares of common stock being registered in this
       offering in the public market. That means that up to 36,260,799 shares of
       common stock, the number of shares being registered in this offering, may
       be sold. Such sales may cause the market price of our stock to decline.
 
           CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
 
     This prospectus, including the documents that are incorporated by reference
as set forth herein under the section entitled "Documents Incorporated by
Reference," contains forward-looking statements within the meaning of Section
27A of the Securities Act and Section 21E of the Securities Exchange Act of
1934, as amended. When used in this prospectus, the words "estimate," "project,"
"anticipate," "expect," "intend," "believe," "hope," "may" and similar
expressions, as well as "will," "shall" and other indications of future tense,
are intended to identify forward-looking statements. The forward-looking
statements are based on our current expectations and speak only as of the date
made. These forward-looking statements involve risks, uncertainties and other
factors that in some cases have affected our historical results and could cause
actual results in the future to differ significantly from the results
anticipated in forward-looking statements made in this prospectus. Important
factors that could cause such a difference are discussed in this prospectus,
 
                                        16

 
particularly in the section entitled "Risk Factors". You are cautioned not to
place undue reliance on the forward-looking statements.
 
     Few of the forward-looking statements in this prospectus, including the
documents that are incorporated by reference, deal with matters that are within
our unilateral control. Joint venture, acquisition, financing and other
agreements and arrangements must be negotiated with independent third parties
and, in some cases, must be approved by governmental agencies. These third
parties generally have interests that do not coincide with ours and may conflict
with our interests. Unless the third parties and we are able to compromise their
various objectives in a mutually acceptable manner, agreements and arrangements
will not be consummated.
 
     Although we believe our expectations reflected in forward-looking
statements are based on reasonable assumptions, no assurance can be given that
these expectations will prove to have been correct. Important factors that could
cause actual results to differ materially from the expectations reflected in the
forward-looking statements include, among others:
 
     - the market prices of oil and gas;
 
     - uncertainty of drilling results, reserve estimates and reserve
       replacement;
 
     - operating uncertainties and hazards;
 
     - economic and competitive conditions;
 
     - natural disasters and other changes in business conditions;
 
     - inflation rates;
 
     - legislative and regulatory changes;
 
     - financial market conditions;
 
     - accuracy, completeness and veracity of information received from third
       parties;
 
     - wars and acts of terrorism or sabotage;
 
     - political and economic uncertainties of foreign governments; and
 
     - future business decisions.
 
     In light of these risks, uncertainties and assumptions, the events
anticipated by our forward-looking statements might not occur. We undertake no
obligation to update or revise our forward-looking statements, whether as a
result of new information, future events or otherwise.
 
                                USE OF PROCEEDS
 
     We will not receive any proceeds from sales of the shares of common stock
covered by this prospectus, with the exception of the proceeds that we will
receive from the issuance of the shares of common stock under the Equity Line of
Credit. The maximum proceeds we may receive under the Equity Line of Credit is
$20 million, before deducting expenses and fees associated with the offering. To
the extent that we issue shares of common stock under the Equity Line of Credit,
we will use the proceeds for working capital purposes and to fund further
operations in the Republic of Georgia.
 
                            THE SELLING STOCKHOLDERS
 
EQUITY LINE OF CREDIT
 
     Of the 36,260,799 shares being offered under this prospectus, up to
23,000,000 shares will be acquired by Cornell pursuant to the Equity Line of
Credit. As described in the "Equity Line of Credit" section below, we entered
into a $20 million Equity Line of Credit with Cornell on February 11, 2004.
Pursuant to the Equity Line of Credit, we may, at our discretion, periodically
issue and sell to Cornell shares of common stock for a
 
                                        17

 

total purchase price of up to $20 million. For each share of common stock
purchased under the Equity Line of Credit, Cornell will receive a substantial
discount to the current market price of CanArgo common stock. The level of the
total discount will vary depending on the market price of our stock and the
amount drawn down under the Equity Line of Credit. On the basis of the average
high and low price for common stock as reported on the American Stock Exchange
on January 27, 2005 of $1.37, Cornell will receive a total discount of 13.87% to
the market price of our stock. Such discount will comprise (1) 3% discount to,
the lowest volume weighted average price of our common stock; (2) 5% of the
proceeds that we receive for each advance under the Equity Line of Credit; and
(3) a commitment fee of 5.87%. The commitment fee, which has been paid,
consisted of $10,000 in cash (paid in two tranches) and 850,000 shares of
CanArgo common stock (issued in three tranches). The 850,000 shares of common
stock issued in respect of the commitment fee represents nearly 4% of the
estimated 23 million shares of common stock that may be issued by us under the
Equity Line of Credit. The amount of each advance is subject to a maximum of
$600,000 per advance, with a minimum of seven trading days between advances.

 

     Cornell is an "underwriter" for purposes of the Securities Act in
connection with the sale of common stock under the Equity Line of Credit. The 3%
discount, the 5.87% commitment fee and the 5% retention are underwriting
discounts. Investment control in Cornell is held by its general partner,
Yorkville Advisors LLC. Mark Angelo, the managing member of Yorkville Advisors
LLC, makes the operational and investment decisions on behalf of Yorkville
Advisors LLC.

 
     In addition, we engaged Newbridge, a registered broker-dealer, to advise us
and to act as our exclusive placement agent in connection with the Equity Line
of Credit. For its services, Newbridge received 30,799 restricted shares of our
common stock. Guy Amico, the President of Newbridge, holds investment control in
Newbridge Securities Corporation. Newbridge is also an "underwriter" for
purposes of the Securities Act in connection with the sale of common stock under
the Equity Line of Credit. See "Equity Line of Credit" below for further
details.
 
     The shares issued in connection with the Equity Line of Credit will be
issued in transactions intended to qualify for an exemption from registration
under the Securities Act afforded by Section 4(2) thereof and Regulation D
promulgated thereunder by the SEC and may not be offered or sold absent
registration under the Securities Act or pursuant to an applicable exemption
from such registration.
 
GEORGIAN BRITISH OIL SERVICES COMPANY, EUROPA OIL SERVICES LIMITED, CEOCAST INC,
NPET OIL LIMITED AND CA FIDUCIARY
 
     The remaining 12,380,000 shares being offered under this prospectus were
acquired by Georgian British Oil Services Company, Europa Oil Services Limited,
CEOcast Inc and NPET Oil Limited and may be acquired by CA Fiduciary in
transactions described below.
 
     As described in the "Recent Developments" herein, on December 12, 2003, we
agreed to buy out the interest of Georgian British Oil Services Company, an
unaffiliated Republic of Georgia Corporation, ("GBOSC") in the Manavi M-11
project farm in agreement by issuing 2 million restricted shares of our common
stock to GBOSC. On the basis of the closing price of the Company's stock on
December 12, 2003 of $0.33 the stock issued to GBOSC had an aggregate value of
$660,000. GBOSC requested that these shares be issued to a nominee company,
Forest Nominees Limited. Mr. Shalua Bakhtadze holds investment control in GBOSC.
The shares were issued in a transaction intended to qualify for an exemption
from registration under the Securities Act afforded by Regulation S promulgated
thereunder by the SEC and may not be offered or sold absent registration under
the Securities Act or pursuant to an applicable exemption from such
registration.
 
     As described in the "Recent Developments" herein, on April 19, 2004, we
announced that all of the conditions to the agreement to acquire 50% of the
Contractor's interest in the Samgori PSC and a 50% interest in the license
holder and operating company for Block XI(B) from Georgian Oil Samgori Limited
had been satisfied. Upon completion of the acquisition we had a contractual
obligation to issue 4 million shares of our common stock to Europa Oil Services
Limited ("Europa"), an unaffiliated British Virgin Islands company, in
connection with a consultancy agreement between us and Europa in terms of which
Europa provided certain
                                        18

 
consultancy services in relation to the original acquisition. Caldwell
Associates Limited hold investment control in Europa and Mr. Philip Caldwell
holds investment control in Caldwell Associates Limited. On April 16, 2004
Europa was issued with 4 million restricted shares of CanArgo common stock in an
arms length transaction intended to qualify for an exemption from registration
under the Securities Act afforded by Regulation S promulgated thereunder. On the
basis of the closing price of the Company's stock on April 16, 2004 of $0.97 on
the OTCBB, the stock issued to Europa had an aggregate value of $3,880,000. A
further 12 million shares of our common stock are issuable upon certain
production targets being met from future developments under the Samgori PSC. See
"Recent Developments" at page 3 above for further details.
 
     On May 17, 2004, we entered into a consultancy agreement with CEOcast Inc,
an unaffiliated New York corporation. In terms of the consultancy agreement,
CEOcast Inc shall provide various investor relations services and strategic
advice to us. As part of the compensation for its services, CEOcast Inc received
80,000 restricted shares of our common stock on July 29, 2004 in an arms length
transaction. Mr. Michael Wachs holds investment control in CEOcast Inc. On the
basis of the closing price of the Company's Stock on July 29, 2004 of $0.53 the
stock issued to CEOcast Inc was valued at $42,400.
 
     As described in the "Recent Developments" herein, on September 30, 2004 we
concluded a transaction to acquire the interests of NPET Oil Limited, a Cypriot
corporation, in one of our subsidiaries, CanArgo Norio Limited ("CNL"), in an
arms length transaction. In consideration for its shares in CNL, NPET Oil
Limited was issued with 6 million restricted shares of common stock. Mr. Vakho
Sakvarelidze holds investment control in NPET Oil Limited. On the basis of the
closing price of the Company's stock on September 30, 2004 of $0.72 the stock
issued to NPET Oil Limited was valued at $4,320,000. The shares were issued in a
transaction intended to qualify for an exemption from registration under the
Securities Act afforded by Regulation S promulgated thereunder by the SEC and
may not be offered or sold absent registration under the Securities Act or
pursuant to an applicable exemption from such registration.
 
     As described in "Recent Developments" herein, on April 29, 2004, we entered
into a six month loan, since repaid, and warrant agreement with CA Fiduciary
Services Limited, a Guernsey corporation, as Settlement Trustees of The SP525A
Settlement ("CA Fiduciary"), an unaffiliated trust created under the laws of
Guernsey. In consideration for CA Fiduciary advancing the loan, we issued to CA
Fiduciary a warrant to subscribe for 300,000 shares of common stock at an
exercise price of $1.05 per share. The warrant was issued in a transaction
intended to qualify for the exemption from registration afforded by Section 4(2)
of the Securities Act and Regulation S promulgated under such Act. The warrant
shares have been included in the shares being registered under the Securities
Act pursuant to the Registration Statement on Form S-3 of which this prospectus
forms a part. Investment control of CA Fiduciary is exercised by CA Fiduciary
Services Limited, and Philip Caldwell holds investment control in Caldwell
Associates Limited.
 
     Our registration of the shares does not necessarily mean that any selling
stockholder will sell any or all of its shares at any time or from time to time
in one or more transactions.
 
                                        19

 

     The following table sets forth the number of shares owned by each of the
selling stockholders. All information contained in the table below is based upon
their beneficial ownership as of January 28, 2005. The shares registered for
sale hereby are restricted and not available for trading on the American Stock
Exchange or on the Oslo Stock Exchange until a Registration Statement filed with
the SEC becomes effective or such shares can otherwise be offered and sold in
transactions exempt from the registration requirements of the Securities Act.
The following table assumes that all of the shares being registered will be
sold. The selling stockholders are not making any representation that any shares
covered by the prospectus will be offered for sale. The selling stockholders
reserve the right to accept or reject, in whole or in part, any proposed sale of
shares. As of January 28, 2005, we had an aggregate of 195,119,320 common shares
outstanding.

 


                                             PERCENTAGE OF
                                              OUTSTANDING                                       PERCENTAGE OF
                                SHARES          SHARES         SHARES TO BE                     COMMON STOCK
                             BENEFICIALLY    BENEFICIALLY     ACQUIRED UNDER    SHARES TO BE     OWNED AFTER
                             OWNED PRIOR     OWNED BEFORE     THE EQUITY LINE   SOLD IN THE     THE OFFERING
NAME OF SELLING STOCKHOLDER  TO OFFERING    OFFERING (%)(1)      OF CREDIT        OFFERING         (%)(9)
---------------------------  ------------   ---------------   ---------------   ------------   ---------------
                                                                                
Cornell Capital Partners,
  L.P.....................       850,000(2)         *           23,000,000       23,850,000           0
Forest Nominees Limited...     2,000,000(3)      1.03                   --        2,000,000           0
Europa Oil Services
  Limited.................     4,000,000(4)      2.05                   --        4,000,000           0
Newbridge Securities
  Corporation.............        30,799(5)         *                   --           30,799           0
NPET Oil Limited..........     6,000,000(6)      3.08                   --        6,000,000           0
CEOcast Inc...............        80,000(7)         *                   --           80,000           0
CA Fiduciary..............       300,000(8)         *                   --          300,000           0
                              ----------         ----           ----------       ----------           --
Totals....................    13,260,799         6.80           23,000,000       36,260,799           0
                              ==========         ====           ==========       ==========           ==

 
---------------
 
 *  Less than one percent.
 

(1) Applicable percentage of ownership is based on 195,119,320 shares of common
    stock outstanding as of January 28, 2005.

 
(2) Represents 261,782 shares of common stock issued on December 17, 2003,
    163,218 shares of common stock issued on February 11, 2004 and 425,000
    shares of common stock issued on July 29, 2004 all issued as payment of the
    one-time commitment fee in connection with Equity Line of Credit.
 
(3) Represents shares issued to GBOSC in connection with the buy out by CanArgo
    of GBOSC's interest in the Manavi well M11 in the Republic of Georgia.
 
(4) Represents shares issued to Europa in connection with the acquisition of 50%
    of the Contractor's interest in the Samgori PSC and a 50% interest in the
    license holder and operating company for Block XI(B) covering the Samgori
    Oil Field.
 
(5) Represents shares issued to Newbridge in connection with the Placement Agent
    Agreement among CanArgo, Cornell and Newbridge dated February 11, 2004.
 
(6) Represents shares received as consideration for the sale of shares held by
    NPET Oil Limited in CanArgo Norio Limited.
 
(7) Represents shares issued to CEOcast Inc pursuant to the Consultancy
    Agreement between CEOcast Inc and CanArgo.
 
(8) Represents 300,000 shares in common stock issuable on exercise of warrants
    issued to CA Fiduciary on April 29, 2004.
 
(9) Based upon a total amount of shares of CanArgo common stock outstanding
    after the Offering of 218,419,320 assuming the full exercise of the issued
    warrants.
 
     This prospectus also covers any additional shares of common stock that
become issuable in connection with the outstanding shares being registered by
reason of any stock dividend, stock split, recapitalization or other similar
transaction effected without the receipt of consideration which results in an
increase in the
 
                                        20

 
number of our outstanding shares of common stock and such indeterminate number
of shares of common stock as may from time to time be issued at indeterminate
prices upon exercise of outstanding warrants in accordance with the
anti-dilution adjustment provisions contained in the warrants.
 
                             EQUITY LINE OF CREDIT
 
SUMMARY
 
     On February 11, 2004, we entered into a $20 million Equity Line of Credit
with Cornell and terminated the original $6 million equity line of credit
entered into on December 17, 2003 with Cornell. Cornell is a Delaware private
limited partnership. Pursuant to the Equity Line of Credit, we may, at our
discretion, periodically sell to Cornell shares of common stock for a total
purchase price of up to $20 million. Subject to this limitation, we may draw
down up to $600,000 in any seven day period over the two year term of the Equity
Line of Credit.
 
     The effectiveness of the sale of the shares under the Equity Line of Credit
is conditional on us registering the shares of common stock with the SEC. The
costs associated with this registration will be borne by us. There are no other
significant closing conditions to draw downs under the Equity Line of Credit.
 
DISCOUNT TO MARKET
 
     For each share of common stock purchased under the Equity Line of Credit,
Cornell will receive a substantial discount to the current market price of
CanArgo common stock. The level of the total discount will vary depending on the
market price of our stock and the amount drawn down under the Equity Line of
Credit. Under the terms of the Equity Line of Credit agreement, Cornell will pay
97% of, or a 3% discount to, the lowest volume weighted closing bid price of our
common stock on the Oslo Stock Exchange ("OSE") for the five consecutive trading
days immediately following the draw down notice date. Prices on the OSE are
quoted in Norwegian Kroner ("NOK") and they shall be converted to $ at the
average closing mid market $/NOK price quoted in the London Financial Times
during such a pricing period. Further, Cornell will retain 5% of each advance
under the Equity Line of Credit. The net effect of the 3% discount and the 5%
retention is that Cornell shall pay 92% of the applicable lowest volume weighted
price for each share of our common stock.
 

     In addition, we have paid Cornell a commitment fee of $10,000 in cash and
850,000 shares of our common stock. This total number of shares issued in
respect of the commitment fee represents nearly 4% of the estimated 23 million
shares of common stock that may be issued by us under the Equity Line of Credit.
The 3% discount, the 5.87% commitment fee and the 5% retention are underwriting
discounts which result in Cornell receiving a total discount of 13.87% to, or
paying 86.13% of, the market price of our common stock on the basis of the
average high and low price for our common stock as reported on the American
Stock Exchange on January 27, 2005 of $1.37.

 
     In addition, we engaged Newbridge, a registered broker-dealer, to advise us
and act as our exclusive placement agent in connection with the Equity Line of
Credit. For its services, Newbridge received 30,799 restricted shares of our
common stock. Newbridge is a registered full service securities broker-dealer
and investment banking provider which forms part of the integrated financial
services company, Newbridge Securities, Inc. Newbridge will be acting as our
exclusive placement agent in which capacity they will be reviewing the terms of
the Equity Line of Credit to ensure that it conforms to industry standards. Guy
Amico, the President of Newbridge, makes the investment decisions on behalf of
Newbridge. Newbridge is independent of and has no existing relationship with
Cornell. Both Cornell and Newbridge are "underwriters" for purposes of the
Securities Act with respect to the sale of common stock under the Equity Line of
Credit.
 
ADVANCES UNDER THE EQUITY LINE OF CREDIT
 
     Pursuant to the Equity Line of Credit, we may periodically sell shares of
common stock to Cornell to raise capital to fund our working capital needs. The
periodic sale of shares is known as an advance. We may
 
                                        21

 
request an advance every seven trading days. A closing will be held six trading
days after such written notice at which time we will deliver shares of common
stock and Cornell will pay the advance amount less the 5% retention. There are
no closing conditions for any of the draws other than the written notice and
associated correspondence. We are limited however, on our ability to request
advances under the Equity Line of Credit based on the number of shares we have
registered on the registration statement of which this prospectus forms a part
and potentially the number of shares we have authorized. The stock issued to
Cornell under the Equity Line of Credit will be issued pursuant to both the
American Stock Exchange listing requirements and the Rules of the Oslo Stock
Exchange.
 
     We may request advances under the Equity Line of Credit once the underlying
shares are registered with the SEC. Thereafter, we may continue to request
advances until Cornell has advanced $20 million or until 24 months after the
effective date of the registration statement of which this prospectus forms a
part, whichever occurs first.
 
     The amount of each advance is subject to a maximum amount of $600,000, and
we may not submit an advance notice within seven trading days of a prior
advance. The amount available under the Equity Line of Credit is not dependent
on the price or volume of our common stock. In addition, we may not request
advances if the shares to be issued in connection with such advances would
result in Cornell owning more than 9.9% of the outstanding shares in our common
stock.
 

     We cannot predict the actual number of shares of common stock that will be
issued pursuant to the Equity Line of Credit, in part, because the purchase
price of the shares will fluctuate based on prevailing market conditions and we
have not determined the total amount of advances we intend to draw. Nonetheless,
we can estimate the number of shares of our common stock that will be issued
using certain assumptions. Assuming we issued the number of shares of common
stock being registered with the SEC at a recent volume weighted average price of
$1.37 per share on the OSE, we would issue approximately 14,598,540 shares of
common stock to Cornell for gross proceeds of $20 million. We are registering
23,000,000 shares of common stock for the sale under the Equity Line of Credit.
Accordingly, should the volume weighted average price per share of our common
stock remain below $0.86 per share we would need to register additional shares
of common stock in order to fully utilize the $20 million available from Cornell
under the Equity Line of Credit.

 
     There is an inverse relationship between our stock price and the number of
shares to be issued under the Equity Line of Credit. That is, as our stock price
declines, we would be required to issue a greater number of shares under the
Equity Line of Credit for a given advance.
 
     Proceeds used under the Equity Line of Credit will be used in the manner
set forth in the "Use of Proceeds" section of this prospectus. We cannot predict
the total amount of proceeds to be raised in this transaction because we have
not determined the total amount of the advances we intend to draw.
 
     We have agreed to indemnify Cornell, Newbridge and their respective control
persons against certain liabilities, including liabilities under the Securities
Act.
 
                SECTION 203 OF DELAWARE GENERAL CORPORATION LAW
 
     Section 203 of the Delaware General Corporation Law, which is applicable to
us as a listed Delaware corporation, prohibits various business combinations
between a Delaware corporation and an "interested stockholder," that is, anyone
who beneficially owns, alone or with other related parties, at least 15% of the
outstanding voting shares of a Delaware corporation. Business combinations
subject to Section 203 include mergers, consolidations, sales or other
dispositions of assets having an aggregate value in excess of 10% of the
consolidated assets of the corporation, and some transactions that would
increase the interested stockholder's proportionate share ownership in the
corporation. Section 203 prohibits this type of business combination for three
years after a person becomes an interested stockholder, unless:
 
     - the business combination is approved by the corporation's board of
       directors prior to the date the person becomes an interest stockholder;
 
                                        22

 
     - the interested stockholder acquired at least 85% of the voting stock of
       the corporation, other than stock held by directors who are also officers
       or by specified employee stock plans, in the transaction in which it
       becomes an interested stockholder; or
 
     - the business combination is approved by a majority of the board of
       directors and by the affirmative vote of two-thirds of the outstanding
       voting stock that is not owned by the interested stockholder.
 
                                        23

 
                              PLAN OF DISTRIBUTION
 
     Under the terms of the private placements, the shares registered for sale
hereby are restricted and not available for trading on the American Stock
Exchange or the Oslo Stock Exchange until after a Registration Statement filed
with SEC becomes effective or offers and sales of such shares are otherwise
exempt from the registration requirements of the Securities Act. Thereafter, the
shares may be sold or distributed from time to time by the selling stockholders
named in this prospectus, by their donees, pledgees or transferees, or by their
other successors in interest. The selling stockholders may sell their shares at
market prices prevailing at the time of sale, at prices related to such
prevailing market prices at the time of sale, at negotiated prices, or at fixed
prices, which may be changed. Each selling stockholder reserves the right to
accept or reject, in whole or in part, any proposed purchase of shares, whether
the purchase is to be made directly or through agents. We are not aware that any
of the selling stockholders have entered into any arrangements with any
underwriters or broker-dealers regarding the sale of their shares of common
stock. The registration rights available to selling stockholders after the
Registration Statement becomes effective shall terminate at such time as all
shares qualified by this Registration Statement are sold by the selling
stockholder in accordance with this prospectus or in accordance with the
provisions of Rules 144, 144A or their equivalent under the Securities Act, or
have been sold pursuant to a transaction effected through the facilities of the
Oslo Stock Exchange in accordance with the provisions of Rule 904 or are
otherwise freely transferable without restriction under applicable United States
securities laws.
 
     The selling stockholders may offer their shares, subject to the
restrictions outlined above, at various times in one or more of the following
transactions:
 
     - in ordinary brokers' transactions and transactions in which the broker
       solicits purchasers;
 
     - in transactions including block trades, in which brokers, dealers or
       underwriters purchase the shares as principal and resell the shares for
       their own accounts pursuant to this prospectus;
 
     - in transactions "at the market" to or through market makers in the common
       stock;
 
     - in other ways not involving market makers or established trading markets,
       including direct sales of the shares to purchasers or sales of the shares
       effected through agents;
 
     - through transactions in options, swaps or other derivatives which may or
       may not be listed on an exchange;
 
     - an exchange distribution in accordance with the rules of such exchange;
 
     - in privately negotiated transactions;
 
     - in transactions to cover short sales; or
 
     - in a combination of any of the foregoing transactions.
 
     In addition, the selling stockholders also may sell their shares in private
transactions or in accordance with Rules 144, 144A or 904 under the Securities
Act rather than under this prospectus.
 
     From time to time, one or more of the selling stockholders may pledge or
grant a security interest in some or all of the shares owned by them. If the
selling stockholders default in the performance of the secured obligations, the
pledgees or secured parties may offer and sell the shares from time to time. The
selling stockholders also may transfer and donate shares in other circumstances.
The number of shares beneficially owned by selling stockholders who donate or
otherwise transfer their shares will decrease as and when the selling
stockholders take these actions. The plan of distribution for the shares offered
and sold under this prospectus will otherwise remain unchanged, except that the
transferees, donees or other successors in interest will be selling stockholders
for purposes of this prospectus. The selling stockholders may use brokers,
dealers, underwriters or agents to sell their shares. The persons acting as
broker, dealers or agents may receive compensation in the form of commissions,
discounts or concessions. This compensation may be paid by the selling
stockholders or the purchasers of the shares for whom such persons may act as
agent, or to whom they may sell as a principal, or both. The selling
stockholders and any agents or broker-dealers that participate with
 
                                        24

 
the selling stockholders in the offer and sale of the shares may be deemed to
be, and in the case of Cornell and Newbridge are, "underwriters" within the
meaning of the Securities Act in connection with the sale of common stock under
the Equity Line of Credit. As described in "The Selling Stockholders -- Equity
Line of Credit" and "Equity Line of Credit", Cornell has received certain
commissions and will receive a discount in respect of the shares it purchases
under the Equity Line of Credit.
 
     Such commissions Cornell, Newbridge or others may receive and any profit
they realize on the resale of the shares by them may be deemed to be
underwriting discounts and commissions under the Securities Act. Neither any
selling stockholders nor we can presently estimate the amount of such
compensation. Because selling stockholders may be deemed to be, and in the case
of Cornell and Newbridge are, "underwriters" within the meaning of the
Securities Act, selling stockholders and persons participating in the offer and
sale of their shares will be subject to the prospectus delivery requirements of
the Securities Act.
 
     As underwriters of our common stock under the Equity Line of Credit,
Cornell and Newbridge are both subject to the same restrictions as any
underwriter, including the prospectus delivery requirements of Section 5(b)(2)
of the Securities Act and the applicable restrictions of Regulation M, with
respect to short selling activities. Cornell and Newbridge have agreed that they
will not, and that they will cause their affiliates not to, engage in any short
sales of or hedging transactions with respect to our common stock.
 
     Under the securities laws of certain states, the shares of common stock may
be sold in such states only through registered or licensed brokers or dealers.
The selling stockholders are advised to ensure that any underwriters, brokers,
dealers or agents effecting transactions on behalf of the selling stockholders
are registered to sell securities in all fifty states. In addition, in certain
states the shares of common stock may not be sold unless the shares have been
registered or qualified for sale in such state or an exemption from registration
or qualification is available and is complied with. We will pay the entire
expenses incidental to the registration, offering and sale of the shares of
common stock to the public hereunder other than commissions, fees and discounts
of underwriters, brokers, dealers and agents. We have agreed to indemnify
Cornell, Newbridge and their controlling persons against certain liabilities,
including liabilities under the Securities Act. We estimate that the expenses of
the offering to be borne by us will be approximately $200,000, as well as
retention of 5% of the gross proceeds received under the Equity Line of Credit.
 
     The selling stockholders and any other person participating in a
distribution of the securities covered by this prospectus will be subject to
applicable provisions of the Exchange Act and the rules and regulations under
the Exchange Act, including Regulation M, which may limit the timing of
purchases and sales of any of the securities by the selling stockholders and any
other such person. Furthermore, under Regulation M, any person engaged in the
distribution of the securities may not simultaneously engage in market-making
activities with respect to the particular securities being distributed for
certain periods prior to the commencement of or during such distribution.
Accordingly, except as noted below, the selling stockholders are not permitted
to cover short sales by purchasing shares while the distribution is taking
place. All of the above may affect the marketability of the securities and the
availability of any person or entity to engage in market-making activities with
respect to the securities.
 
     Under our agreements with the selling stockholders, we are required to bear
the expenses relating to the registration of this offering. The selling
stockholders will bear any underwriting discounts or commissions, brokerage
fees, stock transfer taxes and fees of their legal counsel. The selling
stockholders may agree to indemnify any broker-dealer or agent that participates
in transactions involving sales of the shares against certain liabilities,
including liabilities arising under the Securities Act. The selling stockholders
have agreed to indemnify us against certain liabilities in connection with the
offer of the shares, including liabilities arising under the Securities Act.
 
     If we are notified by a selling stockholder that any material arrangement
has been entered into with a broker-dealer for the sale of shares through a
block trade, special offering, exchange distribution or secondary distribution
or a purchase by a broker or dealer, we will file a supplement to this
prospectus, if required, pursuant to Rule 424(b) under the Securities Act. In
addition, if we are notified by a selling stockholder that a donee or pledgee
intends to sell more than 500 shares, we will file a supplement to this
prospectus.
 
                                        25

 
     To the extent required, this prospectus may be amended or supplemented from
time to time to describe a specific plan of distribution. In effecting sales,
broker-dealers engaged by the selling stockholders may arrange for other
broker-dealers to participate in the resales.
 
     The selling stockholders, other than Cornell and Newbridge, may enter into
hedging transactions with broker-dealers in connection with distributions of the
shares or otherwise. In such transactions, broker-dealers may engage in short
sales of the shares in the course of hedging the positions they assume with the
selling stockholders. The selling stockholders also may sell shares short and
redeliver the shares to close out such short positions. The selling stockholders
may enter into option or other transactions with broker-dealers, which require
the delivery to the broker-dealer of the shares. The broker-dealer may then
resell or otherwise transfer such shares pursuant to this prospectus. The
selling stockholders also may loan or pledge the shares to a broker-dealer. The
broker-dealer may sell the shares so loaned, or upon a default, the
broker-dealer may sell the pledged shares pursuant to this prospectus.
 
                                 LEGAL MATTERS
 
     The validity of the shares of common stock offered hereby has been passed
upon for us by Satterlee Stephens Burke & Burke LLP, New York, New York.
 
                                    EXPERTS
 
     The consolidated financial statements as of December 31, 2003 and for the
year then ended, incorporated in this prospectus by reference from the Company's
Annual Report on Form 10-K, as amended, for the year ended December 31, 2003
have been audited by L J Soldinger Associates LLC, independent auditors, as
stated in their report, which is incorporated herein by reference, and has been
so incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.
 
     The consolidated financial statements as of December 31, 2002 and for the
years ended December 31, 2002 and 2001 incorporated in this prospectus by
reference to the Annual Report on Form 10-K, as amended, of CanArgo Energy
Corporation for the year ended December 31, 2003 have been so incorporated in
reliance on the report of PricewaterhouseCoopers LLP, independent accountants,
given on the authority of said firm as experts in auditing and accounting.
 
     The oil and gas reserve data incorporated by reference to our Annual Report
on Form 10-K, as amended, for the year ended December, 31, 2003, has been
prepared by Oilfield Production Consultants and such reserve report dated
January 1, 2004 has been incorporated herein in reliance upon the authority of
such firm as experts in estimating proved oil and gas reserves.
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
     We are subject to the information and reporting requirements of the
Securities Exchange Act of 1934 under which we file periodic reports, proxy
statements and other information with the Securities and Exchange Commission
("SEC"). Our SEC file number is 1-32145. You may read and copy any document we
file at the Public Reference rooms at the Public Reference Section of the SEC,
450 Fifth Street, N.W., Room 1024, Washington, D.C. 20549. Please call the SEC
at 1-800-SEC-0330 for further information on the public reference rooms. Our SEC
filings are also available to the public from the SEC's internet website at
http://www.sec.gov which contains reports, proxy and information statements and
other information regarding issuers that we file electronically.
 
     This prospectus is part of a registration statement that we filed with the
SEC (registration number 333-115261). The registration statement contains more
information than this prospectus regarding CanArgo Energy Corporation and our
common stock, including certain exhibits. You can get a copy of the registration
statement from the SEC at the addresses listed above or from its internet
website.
 
                                        26

 
     Our common stock is listed on the American Stock Exchange under the symbol
"CNR". Our common stock is also listed on the Oslo Stock Exchange under the
symbol "CNR". Information about us is also available at the offices of the
American Stock Exchange, 86 Trinity Place, New York, NY 10005.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
     The SEC allows us to "incorporate by reference" the information we file
with them, which means that we can disclose important information to you by
referring you to those documents that are considered part of this prospectus.
Later information that we file with the SEC will automatically update and
supersede this information. We incorporate by reference the documents listed
below and any future filings made by us with the SEC under Section 13(a), 13(c),
14 or 15(d) of the Securities Exchange Act of 1934 until this offering of
securities has been completed:
 
     - Annual Report on Form 10-K for the year ended December 31, 2003, as
       amended
 
     - Quarterly Report on Form 10-Q for the fiscal quarter ended March 31,
       2004, as amended
 
     - Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2004
 
     - Quarterly Report on Form 10-Q for the fiscal quarter ended September 30,
       2004
 
     - The description of CanArgo's common stock contained in Form 8-A/12B dated
       April 19, 2004
 
     - Definitive Proxy Materials dated February 24, 2004
 
     - Definitive Proxy Materials dated April 19, 2004
 
     - Definitive Proxy Materials dated May 7, 2004
 

     - Current Reports on Form 8-K filed on June 3, 2004, June 15, 2004, July 6,
       2004, July 13, 2004, August 31, 2004, October 6, 2004, October 7, 2004,
       December 23, 2004 and January 31, 2005

 
     We will provide without charge to each person to whom a copy of this
prospectus is delivered, upon request, a copy of the foregoing documents
(without exhibits). Written or telephone requests for such copies should be
directed to the Corporate Secretary, CanArgo Energy Corporation, PO Box 291, St
Peter Port, Guernsey, GY1 3RR, British Isles, +(44) 1481 729 980.
 
                                        27

 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
                               36,260,799 SHARES
 
                       [CANARGO ENERGY CORPORATION LOGO]
 
                           CANARGO ENERGY CORPORATION
 
                                  COMMON STOCK
 
                           -------------------------
 
                                   PROSPECTUS
                           -------------------------
 
                                    --  , 2005
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

 
                                    PART II
 
                   INFORMATION NOT REQUIRED IN THE PROSPECTUS
 
ITEM 16.  EXHIBITS
 
     (a) Exhibits
 
     The following exhibits are filed as part of this registration statement.
 


EXHIBIT
  NO.                        DESCRIPTION OF EXHIBIT
-------                      ----------------------
       
 **5.1    Opinion of Satterlee Stephens Burke & Burke LLP as to the
          legality of the securities being registered
**23.1    Consent of Satterlee Stephens Burke & Burke LLP to the use
          of their opinion with respect to the legality of the
          securities being registered (included in opinion filed as
          Exhibit 5.1)
 *23.2    Consent of L J Soldinger Associates LLC
 *23.3    Consent of PricewaterhouseCoopers LLP
  24.1    Power of attorney of certain signatories (contained on the
          signature page included in Part II of the Registration
          Statement), as filed on May 6, 2004 (Reg. No. 333-115261).

 
---------------
 
 * Filed herewith
 
** Filed with Amendment No. 2 to Registration Statement on November 23, 2004
 
                                       II-1

 
                                   SIGNATURES
 

     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Amendment No. 4 to
the Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Tbilisi, Republic of Georgia on
January 31, 2005.

 
                                          CANARGO ENERGY CORPORATION
 
                                          By:     /s/ VINCENT MCDONNELL
                                            ------------------------------------
                                                     Vincent McDonnell
                                                  Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.
 



              SIGNATURE                                TITLE                        DATE
              ---------                                -----                        ----
                                                                     
        /s/ VINCENT MCDONNELL                 Chief Financial Officer         January 31, 2005
--------------------------------------
          Vincent McDonnell

 
          /s/ DAVID ROBSON*               Chairman of the Board, President    January 31, 2005
--------------------------------------      and Chief Executive Officer
             David Robson                           and Director

 
          /s/ RUSS HAMMOND*                           Director                January 31, 2005
--------------------------------------
             Russ Hammond

 
        /s/ NILS N. TRULSVIK*                         Director                January 31, 2005
--------------------------------------
           Nils N. Trulsvik

 
          /s/ MICHAEL AYRE*                           Director                January 31, 2005
--------------------------------------
             Michael Ayre

 
 *By:       /s/ VINCENT MCDONNELL
        ------------------------------
              Vincent McDonnell
               Attorney in Fact


 
                                       II-2

 
                                 EXHIBIT INDEX
 


 FILED
HEREWITH                                   EXHIBIT
--------                                   -------
           
   **       5.1  Opinion of Satterlee Stephens Burke & Burke LLP as to the
                 legality of the securities being registered
   **      23.1  Consent of Satterlee Stephens Burke & Burke LLP to the use
                 of their opinion with respect to the legality of the
                 securities being registered (included in opinion filed as
                 Exhibit 5.1)
   *       23.2  Consent of L J Soldinger Associates LLC
   *       23.3  Consent of PricewaterhouseCoopers LLP
           24.1  Power of attorney of certain signatories (contained on
                 signature page included in Part II of the Registration
                 Statement) as filed on May 6, 2004 (Reg. No. 333-115261)

 
---------------
 
 * Filed herewith
 
** Filed with Amendment No. 2 to Registration Statement on November 23, 2004