| Rank |
Company |
Revenue
($ millions) |
Assets |
Market Cap
Jul 7, 2026 |
| # 1 |
Occidental Petroleum Corporation |
21,593 |
84,186 |
|
| # 2 |
Diamondback Energy, Inc. |
15,026 |
71,059 |
50,985 |
| # 3 |
Schlumberger N.V. |
35,708 |
54,868 |
69,647 |
| # 4 |
EOG Resources Inc. |
22,632 |
51,799 |
71,804 |
| # 5 |
EQT Corp |
8,644 |
41,793 |
32,484 |
| # 6 |
Devon Energy Corporation |
17,188 |
31,599 |
49,187 |
| # 7 |
EXPAND ENERGY Corp |
12,124 |
28,287 |
21,509 |
| # 8 |
Halliburton Company |
22,184 |
25,010 |
28,324 |
| # 9 |
Continental Resources, Inc. |
7,694 |
24,522 |
|
| # 10 |
Coterra Energy Inc. |
7,645 |
24,241 |
|
| # 11 |
Ovintiv Inc. |
8,908 |
20,390 |
15,614 |
| # 12 |
Permian Resources Corp |
5,065 |
17,912 |
16,080 |
| # 13 |
APA Corp |
|
17,761 |
12,087 |
| # 14 |
Transocean Ltd. |
3,965 |
15,642 |
6,605 |
| # 15 |
ANTERO RESOURCES Corp |
5,276 |
13,245 |
11,026 |
| # 16 |
Chord Energy Corp |
4,877 |
13,074 |
6,615 |
| # 17 |
Viper Energy, Inc. |
1,395 |
12,671 |
14,800 |
| # 18 |
Crescent Energy Co |
3,580 |
12,443 |
3,141 |
| # 19 |
Matador Resources Co |
3,696 |
11,711 |
6,529 |
| # 20 |
Murphy Oil Corporation |
2,719 |
9,833 |
4,748 |
| # 21 |
SM Energy Co |
3,154 |
9,253 |
6,773 |
| # 22 |
CNX Resources Corp |
2,239 |
9,094 |
4,731 |
| # 23 |
Noble Corp plc |
3,286 |
7,530 |
|
| # 24 |
Range Resources Corporation |
3,116 |
7,422 |
8,940 |
| # 25 |
California Resources Corp |
3,669 |
7,403 |
4,557 |
| # 26 |
Comstock Resources Inc. |
2,220 |
7,007 |
4,200 |
| # 27 |
Helmerich & Payne, Inc. |
4,086 |
6,459 |
3,196 |
| # 28 |
DIVERSIFIED ENERGY CO |
1,829 |
6,169 |
|
| # 29 |
Patterson-UTI Energy Inc. |
4,827 |
5,570 |
3,492 |
| # 30 |
Talos Energy Inc. |
1,780 |
5,552 |
2,287 |
| # 31 |
Northern Oil and Gas Inc. |
2,476 |
5,409 |
1,965 |
| # 32 |
Valaris Ltd |
2,369 |
5,305 |
|
| # 33 |
Nabors Industries Ltd. |
3,185 |
4,790 |
|
| # 34 |
Kosmos Energy Ltd. |
1,288 |
4,697 |
1,332 |
| # 35 |
Hess Midstream LP |
1,621 |
4,388 |
5,039 |
| # 36 |
Seadrill Ltd |
1,437 |
3,947 |
2,445 |
| # 37 |
Par Pacific Holdings Inc. |
7,465 |
3,834 |
3,081 |
| # 38 |
Mach Natural Resources LP |
1,175 |
3,777 |
2,137 |
| # 39 |
WaterBridge Infrastructure LLC |
526 |
3,700 |
4,112 |
| # 40 |
Liberty Energy Inc. |
4,006 |
3,558 |
3,877 |
| # 41 |
HighPeak Energy, Inc. |
863 |
3,214 |
847 |
| # 42 |
BKV Corp |
894 |
3,130 |
2,939 |
| # 43 |
Gulfport Energy Corporation |
1,423 |
3,030 |
3,013 |
| # 44 |
Magnolia Oil & Gas Corp |
1,312 |
2,903 |
4,793 |
| # 45 |
Oceaneering International Inc. |
2,784 |
2,667 |
3,961 |
| # 46 |
Helix Energy Solutions Group Inc. |
1,291 |
2,616 |
1,281 |
| # 47 |
ProFrac Holding Corp. |
1,942 |
2,573 |
865 |
| # 48 |
Expro Group Holdings N.V. |
1,607 |
2,259 |
1,636 |
| # 49 |
Atlas Energy Solutions Inc. |
1,095 |
2,228 |
1,747 |
| # 50 |
National Energy Services Reunited Corp. |
1,324 |
1,852 |
2,833 |
| # 51 |
Phoenix Energy One, LLC |
687 |
1,807 |
|
| # 52 |
Sable Offshore Corp. |
0 |
1,741 |
780 |
| # 53 |
Select Water Solutions, Inc. |
1,407 |
1,596 |
2,536 |
| # 54 |
Gran Tierra Energy Inc. |
597 |
1,586 |
223 |
| # 55 |
RPC Inc. |
1,627 |
1,468 |
1,240 |
| # 56 |
Ring Energy Inc. |
307 |
1,412 |
228 |
| # 57 |
TXO Partners, L.P. |
401 |
1,355 |
708 |
| # 58 |
Black Stone Minerals, L.P. |
470 |
1,336 |
|
| # 59 |
ProPetro Holding Corp. |
1,269 |
1,291 |
1,509 |
| # 60 |
INFINITY NATURAL RESOURCES, INC. |
356 |
1,241 |
814 |
| # 61 |
Kimbell Royalty Partners, LP |
334 |
1,229 |
1,598 |
| # 62 |
Riley Exploration Permian, Inc. |
392 |
1,170 |
721 |
| # 63 |
Granite Ridge Resources, Inc. |
450 |
1,168 |
590 |
| # 64 |
W&T Offshore Inc. |
501 |
956 |
504 |
| # 65 |
Prairie Operating Co. |
242 |
945 |
79 |
| # 66 |
VAALCO Energy Inc. |
359 |
913 |
546 |
| # 67 |
Vitesse Energy, Inc. |
274 |
893 |
661 |
| # 68 |
Tetra Technologies Inc. |
631 |
676 |
1,241 |
| # 69 |
SandRidge Energy Inc. |
156 |
644 |
501 |
| # 70 |
Amplify Energy Corp. |
263 |
601 |
165 |
| # 71 |
Tamboran Resources Corp |
0 |
601 |
|
| # 72 |
Natural Gas Services Group Inc. |
172 |
587 |
486 |
| # 73 |
Core Laboratories Inc. /DE/ |
527 |
584 |
500 |
| # 74 |
Battalion Oil Corporation |
166 |
461 |
40 |
| # 75 |
Ranger Energy Services, Inc. |
547 |
419 |
371 |
| # 76 |
Pedevco Corp. |
46 |
376 |
161 |
| # 77 |
KLX Energy Services Holdings, Inc. |
637 |
340 |
50 |
| # 78 |
Nine Energy Service, Inc. |
562 |
339 |
153 |
| # 79 |
Mammoth Energy Services Inc. |
44 |
335 |
147 |
| # 80 |
ENERGY 11, L.P. |
66 |
329 |
|
| # 81 |
Dorchester Minerals L.P. |
153 |
310 |
1,247 |
| # 82 |
Epsilon Energy Ltd. |
52 |
228 |
163 |
| # 83 |
NCS Multistage Holdings, Inc. |
184 |
181 |
119 |
| # 84 |
EVOLUTION PETROLEUM CORP |
86 |
169 |
130 |
| # 85 |
ENERGY RESOURCES 12, L.P. |
26 |
148 |
|
| # 86 |
AleAnna, Inc. |
25 |
101 |
18 |
| # 87 |
Blue Dolphin Energy Co |
279 |
99 |
|
| # 88 |
Empire Petroleum Corporation |
34 |
66 |
106 |
| # 89 |
Dawson Geophysical Company |
76 |
56 |
198 |
| # 90 |
EVERFLOW EASTERN PARTNERS LP |
7 |
49 |
|
| # 91 |
Zion Oil & Gas Inc |
|
46 |
|
| # 92 |
Reserve Petroleum Co |
17 |
42 |
|
| # 93 |
U.S. Energy Corp. |
7 |
41 |
|
| # 94 |
Houston American Energy Corporation |
0 |
32 |
44 |
| # 95 |
CKX Lands Inc. |
1 |
22 |
23 |
| # 96 |
Barnwell Industries Inc. |
13 |
21 |
15 |
| # 97 |
Mexco Energy Corporation |
7 |
21 |
16 |
| # 98 |
Camber Energy Inc. |
6 |
20 |
|
| # 99 |
Trio Petroleum Corp |
0 |
14 |
15 |
| # 100 |
New ERA Energy & Digital, Inc. |
1 |
14 |
246 |
