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Developments in Four Corners-Intermountain area in 1979

D. L. Baars
Developments in Four Corners-Intermountain area in 1979
AAPG Bulletin (September 1980) 64 (9): 1340-1344


Exploratory drilling in the Four Corners-lntermountain area increased slightly in 1979 with 170 wells drilled. Forty-four of the wells were successfully completed for a success rate of 26%, up from 17.1% successes in 1978. Although drilling activity was down in Arizona, Nevada, and southwest Colorado, there were sharp increases in western New Mexico and Utah. Total exploratory footage drilled was down 11% in 1979, with 840,260 ft drilled in all exploratory categories. Development drilling decreased 5% from 1978, with 955 holes drilled, most of which were in the San Juan basin. The region's most significant discovery was again in the Overthrust belt of northern Utah, where Amoco's 1 Bountiful Livestock produced oil and gas from the Jurassic Nugget Sandstone. Two other wildcat tests in the area reported significant shows. The large Pineview field in the Overthrust belt produced 3.9 MMBO and 4.4 BCFG in 1979. Seven oil and gas discoveries were made in the Uinta basin, and 2 significant oil discoveries were reported from the southern Paradox basin. Nevada's third oil field went on production in 1979 from Tertiary volcanic rocks. Six "offshore" wildcat wells drilled in Utah's Great Salt Lake by Amoco in 1979 have been temporarily abandoned. At least 2 of the wells had significant oil shows in Tertiary basalt. Exploratory and development drilling trends indicate that activity will remain high in the area for 1980.

ISSN: 0149-1423
EISSN: 1558-9153
Coden: AABUD2
Serial Title: AAPG Bulletin
Serial Volume: 64
Serial Issue: 9
Title: Developments in Four Corners-Intermountain area in 1979
Author(s): Baars, D. L.
Affiliation: Fort Lewis Coll., Dep. Geol., Durango, CO, United States
Pages: 1340-1344
Published: 198009
Text Language: English
Publisher: American Association of Petroleum Geologists, Tulsa, OK, United States
Accession Number: 1981-017023
Categories: Economic geology of energy sources
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: tables, sketch map
N32°00'00" - N42°00'00", W117°00'00" - W104°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute.
Update Code: 1981
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