NATURAL GAS 1125
4.2, and Garcia 70.2. Small amounts of gas were used in the field, and 110.3
million cubic feet were estimated to have been wasted in connection with
the production of oil in the Wilson Creek field.
 Four gas wells were completed in1941, with a total daily initial capacity
of 30.1 million cubic feet; two of these were at Powder Wash and
*two at Hiawatha.
 Illinois.—Natural gas produced and marketed, exclusive of that used
for field purposes, increased 46 percent to 1,699.4 million cubic feet in
1941, as reported by A. H. Bell and G. V. Cohee, Illinois Geological Survey,
Urbana, Ill. The gas was produced in five fields, as follows: Russeliville
and Ayers gas fields, 863 and 13.4 million cubic feet, respectively; and
Salem, Louden, and Albion oil fields, 165, 536, and 122 million cubic feet,
respectively. The Salem and Louden gas is residue from gasoline plants.
 Eight new gas wells were drilled in the Russeilville gas field during 1941,
and one was abandoned, leaving 48 active. The productive area of the Buchanan
sand is about 1,600 acres and of the Bridgeport sand 260 acres. The initial
daily production of the new wells averaged about 2 million cubic feet.
 Estimated gas production of the Louden pool during 1941 was 13.7 billion
cubic feet, and the daily average at the end of the year was about 36 million.
Two gasoline plants process 15 million cubic feet daily, and 6 million cubic
feet of residue gas are injected into the oilproducing sands. A line to St.
Elmo and Brownstown takes about 1.4 million cubic feet of residue gas a day.
 Salem-field gas production during 1941 is estimated to be 35.4 biffion cubic
feet, and production was about 82 million cubic feet daily at the end of
the year. Three gasoline plants process 59 mfflion cubic feet a day, of which
4 million cubic feet are returned to oil sands and 1 million used in Salem,
Centralia, and Mount Vernon.
 The Centralia field produced only 1.8 bfflion cubic feet of gas during 1941,
the daily output having declined to about 4 million cubic feet in December;
about 100,000 cubic feet a day were being returned to producing formations.
 In the Storms field, the daily rate of gas production had declined 95
percent in 2 years to 5 million cubic feet at the end of 1941. Estimated
1941 output of gas was 2.2 billion cubic feet. Injection of 120,000
cubic feet a day was begun during 1941.
 The New Harmony, Griffin (Indiana), and Keensburg oil fields produced an
estimated 9 billion cubic feet of gas in 1941, the daily production being
about 25 million cubic feet. A gasoline plant under co~nstruction is designed
to take 20 million a day of this gas, and it is planned to return the residue
gas to producing sands.
 The Albion pool, Edwards County, now making about 1 million cubic feet of
gas a day, produced about 445 mfflion cubic feet in 1941, part of which was
sold to a brick plant at Albion.
 A group of fields of the Central Basin area in Jasper, Richiand, Clay, Wayne,
northern Hamilton, and northwestern White Counties increased their estimated
gas output to 24.5 billion cubic feet during 1941. The new Johnsonville field,
Wayne County, supplies more than one-third of this volume.
 The fields on the south and southwest margin of the flhinois Basin in southern
flilnois produced an estimated 14.5 billion cubic feet of gas. These include,
among others, the more important producing