THE MINERAL INDUSTRY OF KANSAS 
 
 
Table 13.—Oil and gas well drilling in 1967, by counties—Continued

337 
County 
Prov 
ed field wells 
 
Ex 
 
 
Oil 
plorator 
 
 
—_—~ 
 
 
Gas 
y wells Dry 
Total 
 
Oil 
Gas 
Dry 
 
 
 
 
Seward                              
2 
3 
4 
1 
5 
3 
18 
Sheridan                             
9 
 
11 
6 
 
35 
61 
Stafford                             
30 
1 
29 
17 
1 
38 
116 
Stanton                                          
 
 
1 
 
 
1 
2 
Stevens                              
1 
4 
2 
1 
1 
3 
12 
Sumner                              
9 
1 
19 
3 
 
38 
70 
Trego                               
 
 
Wabaunsee 
13 
                                         
1 
14 
9 
 
23 
4 
60 
4 
Wichita                                               
 
 
 
1 
 
4 
5 
Wilson                              
23 
 
8 
 
 
1 
32 
Woodson                             
19 
3 
16 
1 
 
4 
43 
Wyandotte                                                   
 
 
 
 
1 
 
1 
Total                          
1,031 
101 
782 
202 
67 
1,002 
3,185 
Source: American Association of Petroleum Geologists. 
 
Table 14.—Estimated proved recoverable reserves of crude oil, natural
gas liquids, and 
natural gas 
 
 
Changes in 
 
 
 
 
proved 
 
 
Product 
Proved 
reserves 
Dec. 31, 1966 
reserves, 
due to 
extensions, 
revisions, 
and new 
discoveries, 
in 1967 
Proved 
reserves 
Dec. 31, 1967 
(production 
was deducted) 
Changes 
from 
1966 
(percent) 
Crude dil thousand barrels~Natural gas liquids' do~~Natural gas million cubic
feet 
726,429 
256,848 
15,923,275 
—2,928 
33,310 
252,422 
625,121 
271,952 
15,283, 657 
—14 
+6 
—4 
Includes condensate, natural gasoline, and LP gases. 
 
 Source: American Gas Association, American Petroleum Institute, and Canadian
Petroleum AssociationProved Reserves of Crude Oil, Natural Gas Liquids, and
Natural Gas. Tulsa Daily World, 63d year, No. 208 Apr. 8, 1968, p. 22. 
 
 The figure for total known reserves in Kansas reservoirs as of January 1,
1967, was obtained by modifying and updating statistics originally prepared
by Paul D. Torrey.4 Estimates of oil reserves from discoveries in the interval
between January 1, 1967, and December 31, 2019, are based on existing data
projected by using a mathematical formula developed by C. L. Moore.5 
 Kansas ranked seventh in the Nation in volume and value of petroleum production.
Petroleum producing wells at the end of 1967 totaled 47,597, compared with
46,016 wells in 1966. 
 Refineries.—At yearend, 12 refineries were operating in Kansas. Crude
capacity continued to increase and was up to 399,500 barrels per stream day
from 376,860 barrels in 1966.6 The 6.0-percent increase in refinery capacity
was about in line with the national increase of 6.4 percent. During 
1967, Kansas produced only 76.7 percent of the crude oil run to its stills;
although future Kansas production will tend to decrease, future refinery
demands will tend to increase. 
New additions and expansions to the State's refining facilities included
the CRA, Inc., increase in crude capacity at its Phillipsburg refinery to
17,500 barrels per stream day; the National Cooperative Refinery Association
addition of a butane isomerization unit with a capacity of 3,500 barrels
per day to its McPherson refinery; and the Skelly Oil Co. addition of an
8000-barrel-per-day hydrodesulfur4Torrey, Paul D. Evaluation of United States

Oil Resources as of January 1, 1966. Pres. at Ann. Meeting of Interstate
Oil Compact Commission, Phoenix, Ariz., Dec. 12—14, 1966 P. 3. 
 Moore C. L. Method for Evaiuation of U.S. Crude Oil Resources and Projecting
Domestic Crude Oil Availability. U.S. Dept. of Interior, Office of Oil and
Gas, May 1962, p. 42. 
 ~ Oil and Gas Journal. V. 66, No. 14, Apr. 1, 1968, p. 130.