| Rank |
Operator |
Production
(MCF) |
% of
total |
| 1 |
Riviera Operating, LLC
|
42,629,861 |
14.8 |
| 2 |
SandRidge Exploration and Production LLC
|
30,010,928 |
10.4 |
| 3 |
Pioneer Natural Resources USA, Inc.
|
18,244,297 |
6.4 |
| 4 |
OXY USA Inc.
|
17,354,324 |
6.0 |
| 5 |
PostRock Midcontinent Production LLC
|
13,480,896 |
4.7 |
| 6 |
Anadarko Petroleum Corporation
|
13,184,482 |
4.6 |
| 7 |
EXXONMOBIL Oil Corp
|
11,175,238 |
3.9 |
| 8 |
XTO Energy Inc.
|
10,601,540 |
3.7 |
| 9 |
BP America Production Company
|
9,389,358 |
3.3 |
| 10 |
Merit Energy Company, LLC
|
7,535,701 |
2.6 |
| 11 |
Tapstone Energy, LLC
|
6,472,505 |
2.3 |
| 12 |
Woolsey Operating Company, LLC
|
6,328,041 |
2.2 |
| 13 |
Cimarex Energy Co.
|
5,656,752 |
2.0 |
| 14 |
Dart Cherokee Basin Operating Co., LLC
|
4,057,709 |
1.4 |
| 15 |
Chieftain Oil Co., Inc.
|
3,138,702 |
1.1 |
| 16 |
Layne Energy Operating, LLC
|
2,620,355 |
.9 |
| 17 |
Chesapeake Operating, LLC
|
2,294,922 |
.8 |
| 18 |
Anadarko E & P Onshore LLC
|
2,249,041 |
.8 |
| 19 |
Osborn Heirs Company, LTD
|
2,173,873 |
.8 |
| 20 |
McCoy Petroleum Corporation
|
2,091,284 |
.7 |
| 21 |
Herman L. Loeb, LLC
|
2,048,977 |
.7 |
| 22 |
Kansas Natural Gas Operating, LC
|
1,942,060 |
.7 |
| 23 |
Oil Producers, Inc. of Kansas
|
1,938,035 |
.7 |
| 24 |
BEREXCO LLC
|
1,769,854 |
.6 |
| 25 |
Unit Petroleum Company
|
1,711,578 |
.6 |
| 26 |
Vincent Oil Corporation
|
1,704,324 |
.6 |
| 27 |
Val Energy, Inc.
|
1,635,863 |
.6 |
| 28 |
Pioneer Natural Resources USA, Inc.
|
1,616,226 |
.6 |
| 29 |
Noble Energy, Inc.
|
1,585,233 |
.6 |
| 30 |
Lotus Operating Company, L.L.C.
|
1,320,578 |
.5 |
| 31 |
American Warrior, Inc.
|
1,270,470 |
.4 |
| 32 |
Colt Energy Inc
|
1,237,175 |
.4 |
| 33 |
R & B Oil & Gas, Inc.
|
1,219,809 |
.4 |
| 34 |
Cherokee Wells LLC
|
1,214,328 |
.4 |
| 35 |
Edison Operating Company LLC
|
1,165,069 |
.4 |
| 36 |
Devon Energy Production Company, L.P.
|
1,164,872 |
.4 |
| 37 |
Indian Oil Co., Inc.
|
1,157,505 |
.4 |
| 38 |
N-10 Exploration, LLC
|
1,059,766 |
.4 |
| 39 |
CMX, Inc.
|
1,023,794 |
.4 |
| 40 |
Rosewood Resources, Inc.
|
968,713 |
.3 |
| 41 |
Falcon Exploration, Inc.
|
938,088 |
.3 |
| 42 |
Horseshoe Operating, Inc.
|
936,854 |
.3 |
| 43 |
Nadel and Gussman LLC
|
917,005 |
.3 |
| 44 |
Pickrell Drilling Company, Inc.
|
898,774 |
.3 |
| 45 |
Chevron U. S. A. Inc.
|
886,305 |
.3 |
| 46 |
Lario Oil & Gas Company
|
866,479 |
.3 |
| 47 |
Castelli Exploration, Inc.
|
866,288 |
.3 |
| 48 |
O'Brien Energy Resources Corp.
|
845,152 |
.3 |
| 49 |
Shell Gulf of Mexico Inc.
|
763,011 |
.3 |
| 50 |
Bear Petroleum, LLC
|
735,661 |
.3 |
