THE MINERAL INDUSTRY OF UTAH 
791 
 
Juan County, had the highest gas production (21.7 billion cubic feet) the
product was all returned to the reservoir for pressure maintenance. The Greater
Red Wash Area, Uintah County, yielded 20.9 billion and the Greater Aneth
Area, San Juan County, yielded 9.2 billion cubic feet of gas. San Arroyo
field, Grand County, had the highest dry gas output—4.3 billion cubic
feet. 
 Royalties on gas paid to State and Federal Government agencies amounted
to $816,432; of this, $273,099 was from production on Indian lands, $487,084
from public domain, and $56,249 from State lands.5 Under the Mineral Leasing
Act of 1920, the State was -to receive 37.5 percent of the royalties paid
on production from public domain. 
 The American Petroleum Institute (API) and the American Gas Association,
Inc., (AGA) estimated gas reserves in Utah at 1.2 trillion cubic feet, 145.7
billion cubic feet less than the 1966 estimate. Extensions and revisions
caused a net decline of 90.8 billion; new fields and pools added only 1.7
billion cubic feet.6 
 A gas-gathering system in the Horseshoe Bend Area was completed by Uipta
Pipe Line Corp.; deliveries of gas were to Mountain Fuel Supply Co. 
 
 Natural Gas Liquids.—Mainly because of the start of operations at
the new plant of Union Oil Company of California, output of total natural
gas liquids increased 21 percent. Production of LP gases increased 25 percent;
that for natural gasoline was 12 percent greater. On July 1 Union's new Lisbon
gasoline plant in San Juan County commenced operations; the plant extracted
about 120,000 gallons of liquids per day from the wet gas produced from the
Lisbon field. The residue gas, approximately 60 million cubic feet per day,
was returned to the reservoir for pressure maintenance. 
 
 Petrolcum.—Production of crude petroleum declined very slightly—64,000
barrels. As in the past San Juan County was ranked first with 64 percent
of the production; output, however, declined more than 600,000 barrels. Yield
from the Bridger Lake field, Summit County, more than tripled because of
development drilling in this new field; at yearend, a pipeline outlet for
the field was partly completed. Production from the Upper Valley field, 
Garfield County, almost doubled. 
 Greater Aneth Area (including Aneth, Cahone Mesa, McElmo Creek, Ratherford,
and White Mesa fields), San Juan County, led the State in production of oil,
with 9.7 million barrels. Greater Red Wash Area, Uintah County, second with
an output of 6.4 million barrels, included the Red Wash, Walker Hollow, White
River, and WonsitsWonSits Valley fields. Lisbon field, San Juan County, and
Bridger Lake field, Summit County, were ranked third and fourth, respectively,
with 3.6 million and 861,000 barrels. 
 The API and AGA estimates of crude oil reserves for January 1, 1968, listed
201 million barrels for Utah. Additions because of revisions and extensions
amounted to 10.4 million barrels and new fields and new pools added 1.7 million
barrels; however, production caused a net decline of 12.3 million barrels.

 State and Federal Government agencies received royalty payments on petroleum

Table 12.—Crude petroleum production, by counties 
(Thousand 42-gallon barrels) 
 
County 
1966 
1967 
~~P' 
 
 
 
production 
Box Elder_ - - 
(1) 
2 
Rozel Point. 
Carbon     
2 
 
 
Daggett     
Duchesne.. - - - 
 5 
145 
 3 
215 
Clay Basin. Monument Butte, Indian Ridge, Duchesne. 
Emery      
16 
11 
Grassy Trail, Ferron. 
Garfield     
224 
432 
Upper Valley. 
Grand      
162 
139 
Long Canyon, Salt Wash, 
San juan.. - - - 
15,948 
15,304 
 Agate. 
Lisbon, McElmo Creek, Aneth, Ratherford. 
Summit     
241 
861 
Bridger Lake. 
Uintah     
7,368 
7,081 
Red Wash, Won 
sits-Wonsits 
Washington_ 
1 
 
Valley, Ashley Valley. 
Total.. 
24,112 
24,048 
 
 ' Less than ~ unit. 
 
 Source: Utah Oil & Gas Conservation Commission. 
 Utah Department of Natural Resources, Division of Oil & Gas Conservation.
Monthly Royalty Report. December 1967, 32 pp. 
 6 American Gas Association, Inc., American 
 
Petroleum Institute, and Canadian Petroleum 
Association. Reserves of Crude Oil, Natural Gas 
Liquids, and Natural Gas in the United States 
and Canada as of Dec. 31, 1967. V. 22, Ma~ 
1968, p. 125.