| Rank |
Company |
Revenue
($ millions) |
Assets |
Market Cap
Jun 16, 2025 |
| # 1 |
Schlumberger N.V. |
36,289 |
48,935 |
49,374 |
| # 2 |
Occidental Petroleum Corporation |
26,725 |
85,445 |
|
| # 3 |
EOG Resources Inc. |
23,698 |
47,186 |
68,376 |
| # 4 |
Halliburton Company |
22,944 |
25,587 |
19,937 |
| # 5 |
Devon Energy Corporation |
15,940 |
30,489 |
22,544 |
| # 6 |
Diamondback Energy, Inc. |
11,066 |
67,292 |
45,260 |
| # 7 |
Ovintiv Inc. |
9,152 |
19,254 |
10,900 |
| # 8 |
Par Pacific Holdings Inc. |
7,974 |
3,829 |
1,263 |
| # 9 |
Continental Resources, Inc. |
7,378 |
22,306 |
|
| # 10 |
Coterra Energy Inc. |
5,458 |
21,625 |
20,379 |
| # 11 |
Patterson-UTI Energy Inc. |
5,378 |
5,833 |
2,520 |
| # 12 |
EQT Corp |
5,273 |
39,830 |
34,026 |
| # 13 |
Chord Energy Corp |
5,251 |
13,032 |
6,124 |
| # 14 |
Civitas Resources Inc. |
5,207 |
14,944 |
|
| # 15 |
Permian Resources Corp |
5,001 |
16,898 |
11,942 |
| # 16 |
ANTERO RESOURCES Corp |
4,326 |
13,010 |
12,937 |
| # 17 |
Liberty Energy Inc. |
4,315 |
3,296 |
2,216 |
| # 18 |
EXPAND ENERGY Corp |
4,235 |
27,894 |
|
| # 19 |
Transocean Ltd. |
3,524 |
19,371 |
2,932 |
| # 20 |
Matador Resources Co |
3,505 |
10,850 |
6,465 |
| # 21 |
California Resources Corp |
3,198 |
7,135 |
4,215 |
| # 22 |
Noble Corp plc |
3,058 |
7,965 |
|
| # 23 |
Murphy Oil Corporation |
3,028 |
9,667 |
3,629 |
| # 24 |
Crescent Energy Co |
2,931 |
9,161 |
2,496 |
| # 25 |
Nabors Industries Ltd. |
2,930 |
4,504 |
|
| # 26 |
Helmerich & Payne, Inc. |
2,757 |
5,817 |
1,818 |
| # 27 |
SM Energy Co |
2,690 |
8,577 |
3,235 |
| # 28 |
Oceaneering International Inc. |
2,661 |
2,336 |
2,155 |
| # 29 |
Range Resources Corporation |
2,417 |
7,348 |
9,891 |
| # 30 |
Valaris Ltd |
2,363 |
4,420 |
|
| # 31 |
Northern Oil and Gas Inc. |
2,226 |
5,604 |
3,174 |
| # 32 |
ProFrac Holding Corp. |
2,191 |
2,988 |
1,466 |
| # 33 |
Talos Energy Inc. |
1,974 |
6,192 |
1,669 |
| # 34 |
Vital Energy, Inc. |
1,952 |
5,879 |
1,767 |
| # 35 |
Expro Group Holdings N.V. |
1,713 |
2,334 |
1,102 |
| # 36 |
Kosmos Energy Ltd. |
1,675 |
5,309 |
1,076 |
| # 37 |
Hess Midstream LP |
1,496 |
4,151 |
4,621 |
| # 38 |
Select Water Solutions, Inc. |
1,452 |
1,366 |
1,096 |
| # 39 |
ProPetro Holding Corp. |
1,444 |
1,224 |
670 |
| # 40 |
RPC Inc. |
1,415 |
1,386 |
1,118 |
| # 41 |
Seadrill Ltd |
1,385 |
4,156 |
1,814 |
| # 42 |
Helix Energy Solutions Group Inc. |
1,359 |
2,597 |
1,080 |
| # 43 |
Magnolia Oil & Gas Corp |
1,316 |
2,821 |
4,662 |
| # 44 |
CNX Resources Corp |
1,267 |
8,512 |
4,727 |
| # 45 |
Comstock Resources Inc. |
1,254 |
6,382 |
7,420 |
| # 46 |
HighPeak Energy, Inc. |
1,069 |
3,063 |
122 |
| # 47 |
Atlas Energy Solutions Inc. |
1,056 |
1,973 |
1,811 |
| # 48 |
Mach Natural Resources LP |
970 |
2,338 |
1,738 |
| # 49 |
Gulfport Energy Corporation |
958 |
2,866 |
3,480 |
| # 50 |
Viper Energy, Inc. |
860 |
5,069 |
12,269 |
| # 51 |
Berry Corp (bry) |
784 |
1,518 |
240 |
| # 52 |
KLX Energy Services Holdings, Inc. |
709 |
456 |
50 |
| # 53 |
Sitio Royalties Corp. |
624 |
4,744 |
3,092 |
| # 54 |
Gran Tierra Energy Inc. |
622 |
1,655 |
216 |
| # 55 |
BKV Corp |
605 |
2,231 |
1,975 |
| # 56 |
Tetra Technologies Inc. |
599 |
605 |
463 |
| # 57 |
Ranger Energy Services, Inc. |
571 |
382 |
289 |
| # 58 |
Nine Energy Service, Inc. |
554 |
360 |
31 |
| # 59 |
W&T Offshore Inc. |
525 |
1,099 |
317 |
| # 60 |
Core Laboratories Inc. /DE/ |
524 |
590 |
566 |
| # 61 |
VAALCO Energy Inc. |
479 |
955 |
399 |
| # 62 |
Aris Water Solutions, Inc. |
435 |
1,420 |
1,543 |
| # 63 |
Black Stone Minerals, L.P. |
434 |
1,219 |
2,946 |
| # 64 |
Riley Exploration Permian, Inc. |
410 |
994 |
626 |
| # 65 |
Granite Ridge Resources, Inc. |
380 |
1,036 |
784 |
| # 66 |
Ring Energy Inc. |
366 |
1,408 |
179 |
| # 67 |
Kimbell Royalty Partners, LP |
309 |
1,120 |
1,527 |
| # 68 |
Amplify Energy Corp. |
295 |
747 |
144 |
| # 69 |
TXO Partners, L.P. |
283 |
1,031 |
633 |
| # 70 |
Vitesse Energy, Inc. |
242 |
811 |
942 |
| # 71 |
Battalion Oil Corporation |
194 |
431 |
27 |
| # 72 |
Mammoth Energy Services Inc. |
188 |
384 |
130 |
| # 73 |
NCS Multistage Holdings, Inc. |
163 |
153 |
78 |
| # 74 |
Dorchester Minerals L.P. |
162 |
367 |
1,330 |
| # 75 |
Natural Gas Services Group Inc. |
157 |
493 |
321 |
| # 76 |
SandRidge Energy Inc. |
125 |
582 |
436 |
| # 77 |
EVOLUTION PETROLEUM CORP |
86 |
160 |
172 |
| # 78 |
ENERGY 11, L.P. |
86 |
354 |
|
| # 79 |
Empire Petroleum Corporation |
44 |
124 |
179 |
| # 80 |
Pedevco Corp. |
40 |
134 |
69 |
| # 81 |
ENERGY RESOURCES 12, L.P. |
36 |
162 |
|
| # 82 |
PHX Minerals Inc. |
35 |
164 |
164 |
| # 83 |
Epsilon Energy Ltd. |
32 |
120 |
179 |
| # 84 |
U.S. Energy Corp. |
21 |
50 |
75 |
| # 85 |
Barnwell Industries Inc. |
20 |
26 |
18 |
| # 86 |
Reserve Petroleum Co |
15 |
36 |
|
| # 87 |
Prairie Operating Co. |
8 |
157 |
169 |
| # 88 |
RIDGEWOOD ENERGY O FUND LLC |
7 |
13 |
|
| # 89 |
RIDGEWOOD ENERGY Y FUND LLC |
6 |
11 |
|
| # 90 |
Arcadia Biosciences, Inc. |
5 |
14 |
7 |
| # 91 |
EVERFLOW EASTERN PARTNERS LP |
5 |
45 |
|
| # 92 |
Mexco Energy Corporation |
5 |
20 |
24 |
| # 93 |
RIDGEWOOD ENERGY W FUND LLC |
4 |
7 |
|
| # 94 |
RIDGEWOOD ENERGY U FUND LLC |
3 |
7 |
|
| # 95 |
RIDGEWOOD ENERGY X FUND, LLC |
3 |
11 |
|
| # 96 |
RIDGEWOOD ENERGY Q FUND LLC |
3 |
6 |
|
| # 97 |
RIDGEWOOD ENERGY V FUND LLC |
3 |
5 |
|
| # 98 |
RIDGEWOOD ENERGY S FUND LLC |
2 |
5 |
|
| # 99 |
RIDGEWOOD ENERGY T FUND LLC |
2 |
4 |
|
| # 100 |
RIDGEWOOD ENERGY A-1 FUND LLC |
2 |
4 |
|