EXHIBIT 10.4   Press release announcing the execution of the merger agreement

SABA PETROLEUM COMPANY
                          3201 Airpark Drive, Suite 201
                         Santa Maria, California, 93455
                  Tel: 805 / 347 - 8700 - Fax: 805 / 347 - 1072

                                                       





                       News Release For Immediate Release
                                  June 2, 1998
       For more information, please contact: Irwin Kaufman (702) 242-8281

                Saba Petroleum Company and Omimex Resources Inc.
                            Execute Merger Agreement

Santa Maria,  California and Fort Worth,  Texas -- Saba Petroleum Company (Amex:
SAB) and privately held Omimex Resources,  Inc. jointly announced the signing of
a  definitive  merger  Agreement.  The  companies  had  previously  announced  a
preliminary  agreement  to  merge  and  the  Agreement  was  the  result  of the
continuing  negotiations  which gave effect to current oil and financial  market
conditions.  The newly  combined  company,  which  will  adopt  the name  Omimex
Resources,  Inc., will be  headquartered in Fort Worth and will be managed by an
expanded  Omimex  management  team,  led by Naresh  Vashisht.  Omimex  presently
operates and owns  equivalent  or greater  interests in all of Saba's  Colombian
properties and a number of its domestic  properties.  The combined  company will
own properties in Colombia, Canada, various oil and gas producing regions (other
than California) of the United States and the United Kingdom.

Upon   consummation  of  the  merger,   Omimex   shareholders   will  be  issued
approximately 20.4 million shares of Saba's common stock,  subject to adjustment
for the  results of  operations  from  January 1 through the  closing  date.  In
addition,   the  Omimex   shareholders   will   receive   warrants  to  purchase
approximately  350,000  shares  of common  stock at market  price on the date of
closing.  Saba  presently  has  some 11  million  shares  of  common  stock  and
equivalents  outstanding  as well as 10,000 shares of Series A Preferred  Stock,
which is  convertible  into an  indeterminate  number of shares of common stock,
depending on market price.

As part of the merger transaction, Omimex is currently loaning to Saba some $4.2
million,  of which $2 million will be used to reduce Saba's bank debt, a portion
of which is in the process of being extended. Approximately $2.2 million will be
employed to redeem one fifth of Saba's outstanding Series A Preferred Stock; the
company has the option to redeem an additional  two-fifths by September 30, 1998
at  108.5%  plus  accrued  dividends.  Under an  agreement  with  the  preferred
shareholders,  the two  fifths  subject to option,  if not  redeemed,  cannot be
converted until after September 30, 1998. The Agreement contains  provisions for
the redemption of Saba's 9% Debentures shortly after closing.

The  transaction is structured as a tax free exchange with a concurrent spin off
of Saba's California  producing  (approximately 2,700 BOE per day), refining and
other assets and its Indonesian concession to the existing shareholders of Saba.
The spunoff operations will be conducted by Saba Petroleum,  Inc., which will be
independent of Omimex,  and will be managed by Ilyas Chaudhary,  chief executive
officer  of Saba.  It is  expected  that the spin off will not be taxable to the
shareholders of existing Saba. The transaction will result in two  independently
operated companies,  Saba Petroleum, Inc. and Omimex Resources, Inc. Omimex will
continue to be traded on the American Stock Exchange and Saba Petroleum, Inc. is
expected to trade initially in the over the counter market.

Based upon estimates of  independent  engineers at January 1, 1998, the combined
company,  at such date,  would have had  approximately  48 million BOE of proved
reserves,  about  70% of  which  were in  Colombia,  and a  combined  net  daily
production of approximately  10,000 BOE. In addition,  the combined company will
own all of the 118 mile Colombian  pipeline system presently  operated by Omimex
and over 600,000 gross acres in Colombia.

The closing of the transaction is subject to, among other customary  conditions,
the  approval  of Saba's  shareholders,  the  receipt  of a  fairness  and legal
opinions, consummation of banking arrangements by the combined company, approval
of Saba's  lender and  regulatory  approvals.  It is currently  expected  that a
meeting of the  shareholders  of Saba will be held  during the third  quarter of
1998 for the purpose of voting on the transaction.

Ilyas Chaudhary,  Saba CEO, stated that "This combination and the spinoff of our
California  assets is the  culmination  of the  process  that was begun when the
Board  engaged  CIBC-Oppenheimer  to advise the company on methods of  enhancing
values for Saba shareholders.  Our combination with Omimex  essentially  doubles
the size of the company and allows our shareholders to participate in a stronger
company,  led by an  experienced  and  successful  manager.  The spinoff of Saba
Petroleum,  Inc. also gives the Saba  shareholders an opportunity to realize the
value of what we view as assets  which are  essentially  not  recognized  by the
marketplace."

Naresh  Vashisht,  Omimex CEO,  added,  "The  combination of Omimex's and Saba's
assets  and  operations   makes  a  good  deal  of  sense,   strategically   and
operationally.  Because Omimex already  operates a large number of properties in
which  Saba has an  interest,  we  expect  to  realize  significant  savings  by
eliminating duplicate costs and personnel.  With a larger property base, we also
expect to  rationalize  assets  and  focus on core  areas in  Colombia,  Canada,
Michigan and  Louisiana.  The size of the combined  companies  will allow better
access to capital markets,  enabling us to aggressively  exploit our reserve and
acreage positions and pursue the acquisition of additional properties.

We believe Omimex possesses an unique competitive position in Colombia, since we
operate almost 12,000 BOE per day of production and employ more than 250 people.
We also own and operate a 118 mile pipeline  which has the capacity to transport
up to 55,000 BOPD to the main Colombian  refinery.  Additionally,  we are one of
the more significant leaseholders in Colombia, holding over 600,000 gross acres,
including the Cuerdas Block,  where our geoscientists  have identified more than
30 structures, which could be evaluated in the future, as conditions permit."


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                   Safe Harbor for Forward Looking Statements

Except for  historical  information  contained  herein,  the  statements in this
Release are forward-looking statements that are made pursuant to the safe harbor
provision   of  the   Private   Securities   Litigation   Reform  Act  of  1995.
Forward-looking  statements  involve known and unknown  risks and  uncertainties
which  may cause the  Company's  actual  results  in  future  periods  to differ
materially from forecasted results. These risks and uncertainties include, among
other things,  volatility of oil prices,  product  demand,  market  competition,
risks inherent in the Company's international operations, imprecision of reserve
estimates,  the availability of additional oil and gas assets for acquisition on
commercially  reasonable terms, and the Company's ability to replace and exploit
its existing oil and gas  reserves.  These and other risks are  described in the
Company's Annual Report on Form 10-K and in the Company's other filings with the
Securities and Exchange Commission.