| Rank |
Operator |
Production
(MCF) |
% of
total |
| 1 |
Riviera Operating, LLC
|
33,506,458 |
11.4 |
| 2 |
SandRidge Exploration and Production LLC
|
27,449,769 |
9.3 |
| 3 |
EXXONMOBIL Oil Corp
|
21,696,453 |
7.4 |
| 4 |
OXY USA Inc.
|
20,611,740 |
7.0 |
| 5 |
Anadarko Petroleum Corporation
|
14,465,562 |
4.9 |
| 6 |
PostRock Midcontinent Production LLC
|
14,181,777 |
4.8 |
| 7 |
Pioneer Natural Resources USA, Inc.
|
14,151,723 |
4.8 |
| 8 |
BP America Production Company
|
9,812,384 |
3.3 |
| 9 |
XTO Energy Inc.
|
8,930,642 |
3.0 |
| 10 |
Woolsey Operating Company, LLC
|
6,556,570 |
2.2 |
| 11 |
Cimarex Energy Co.
|
6,538,681 |
2.2 |
| 12 |
Merit Energy Company, LLC
|
5,624,316 |
1.9 |
| 13 |
Dart Cherokee Basin Operating Co., LLC
|
4,610,759 |
1.6 |
| 14 |
Chesapeake Operating, LLC
|
3,454,078 |
1.2 |
| 15 |
Chieftain Oil Co., Inc.
|
3,211,277 |
1.1 |
| 16 |
Layne Energy Operating, LLC
|
2,947,874 |
1.0 |
| 17 |
Osborn Heirs Company, LTD
|
2,371,217 |
.8 |
| 18 |
McCoy Petroleum Corporation
|
2,261,306 |
.8 |
| 19 |
Kansas Natural Gas Operating, LC
|
2,216,840 |
.8 |
| 20 |
Val Energy, Inc.
|
2,213,255 |
.8 |
| 21 |
Oil Producers, Inc. of Kansas
|
2,103,697 |
.7 |
| 22 |
Vincent Oil Corporation
|
2,063,181 |
.7 |
| 23 |
Herman L. Loeb, LLC
|
2,043,501 |
.7 |
| 24 |
Noble Energy, Inc.
|
1,890,926 |
.6 |
| 25 |
Anadarko E & P Onshore LLC
|
1,865,665 |
.6 |
| 26 |
Tapstone Energy, LLC
|
1,861,539 |
.6 |
| 27 |
Shell Gulf of Mexico Inc.
|
1,803,753 |
.6 |
| 28 |
N-10 Exploration, LLC
|
1,606,084 |
.5 |
| 29 |
Unit Petroleum Company
|
1,602,143 |
.5 |
| 30 |
Pioneer Natural Resources USA, Inc.
|
1,576,384 |
.5 |
| 31 |
BEREXCO LLC
|
1,549,817 |
.5 |
| 32 |
R & B Oil & Gas, Inc.
|
1,367,287 |
.5 |
| 33 |
Colt Energy Inc
|
1,340,601 |
.5 |
| 34 |
Lotus Operating Company, L.L.C.
|
1,300,693 |
.4 |
| 35 |
Cherokee Wells LLC
|
1,298,437 |
.4 |
| 36 |
American Warrior, Inc.
|
1,267,570 |
.4 |
| 37 |
Indian Oil Co., Inc.
|
1,201,423 |
.4 |
| 38 |
Falcon Exploration, Inc.
|
1,070,907 |
.4 |
| 39 |
Horseshoe Operating, Inc.
|
1,060,584 |
.4 |
| 40 |
Nadel and Gussman LLC
|
1,002,677 |
.3 |
| 41 |
Lario Oil & Gas Company
|
946,521 |
.3 |
| 42 |
Rosewood Resources, Inc.
|
946,515 |
.3 |
| 43 |
CMX, Inc.
|
885,025 |
.3 |
| 44 |
Castelli Exploration, Inc.
|
875,591 |
.3 |
| 45 |
Pickrell Drilling Company, Inc.
|
868,002 |
.3 |
| 46 |
Chevron U. S. A. Inc.
|
859,278 |
.3 |
| 47 |
Devon Energy Production Company, L.P.
|
837,643 |
.3 |
| 48 |
Palmer Oil, Inc.
|
830,223 |
.3 |
| 49 |
O'Brien Energy Resources Corp.
|
780,967 |
.3 |
| 50 |
Bear Petroleum, LLC
|
738,475 |
.3 |
