SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
FORM 8-K
Current Report Pursuant
to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of report (Date of earliest event reported) August 24, 1998
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UNOCAL CORPORATION
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(Exact name of registrant as specified in its charter)
Delaware
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(State or Other Jurisdiction of Incorporation)
1-8483 95-3825062
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(Commission File Number) (I.R.S. Employer Identification No.)
2141 Rosecrans Avenue, Suite 4000, El Segundo, California 90245
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(Address of Principal Executive Offices) (Zip Code)
(310) 726-7600
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(Registrant's Telephone Number, Including Area Code)
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Item 5. Other Events.
On August 24, 1998, Unocal Corporation announced the test of a second interval
in the West Seno #2 deepwater discovery well offshore Indonesia flowed at a
daily rate of 10,069 barrels of 39-degree API gravity oil and 9.5 million cubic
feet of natural gas.
This drillstem test (DST) was from a true vertical depth subsea (TVDS) interval
between 8,007 feet and 8,064 feet on a 1-1/4-inch choke. Flowing tubing pressure
was 830 pounds per square inch.
On August 17, Unocal announced a successful DST on a deeper interval in the West
Seno #2 well. Mechanical equipment problems prevented conducting a high rate
test on that interval, but yielded important reservoir information. In total,
the West Seno #2 well encountered 172 feet of vertical hydrocarbon pay in two
zones between 7,300 feet and 8,600 feet TVDS. The well is located in 2,800 feet
of water. Flow tests and wireline logging indicate porosity of 30 percent and
excellent permeability in the formations.
The West Seno #2 well is Unocal Indonesia's second deepwater discovery offshore
East Kalimantan in the Kutei Basin. The extent and commerciality of the West
Seno discovery will be determined following additional appraisal drilling.
The West Seno #2 well is located on the Makassar Strait production-sharing
contract (PSC) area. Unocal Indonesia Company is operator of the Makassar Strait
PSC and has a 50-percent working interest. Mobil Makassar, Inc., holds the
remaining 50 percent. Under the terms of the PSC, Unocal, as contractor to
Pertamina, the Indonesian national oil company, is entitled to varying shares of
the oil and gas produced from commercial discoveries.
Forward-looking statements about future exploration and development activities
and projected results set forth above are based on assumptions concerning
geology, regulatory actions, economic, market conditions, operational concerns
and other considerations. Actual results could differ materially.
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Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.
UNOCAL CORPORATION
(Registrant)
Date: August 26, 1998 By: /s/ JOE D. CECIL
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Joe D. Cecil
Vice President and Comptroller
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