| Rank |
Company |
Revenue
($ millions) |
Assets |
Market Cap
Nov 14, 2025 |
| # 1 |
Occidental Petroleum Corporation |
26,725 |
85,445 |
|
| # 2 |
Diamondback Energy, Inc. |
11,066 |
67,292 |
42,744 |
| # 3 |
Schlumberger N.V. |
36,289 |
48,935 |
50,138 |
| # 4 |
EOG Resources Inc. |
23,698 |
47,186 |
59,756 |
| # 5 |
EQT Corp |
5,273 |
39,830 |
37,443 |
| # 6 |
Devon Energy Corporation |
15,940 |
30,489 |
22,410 |
| # 7 |
EXPAND ENERGY Corp |
4,235 |
27,894 |
|
| # 8 |
Halliburton Company |
22,944 |
25,587 |
23,044 |
| # 9 |
Continental Resources, Inc. |
7,378 |
22,306 |
|
| # 10 |
Coterra Energy Inc. |
5,458 |
21,625 |
20,005 |
| # 11 |
APA Corp |
|
19,390 |
8,787 |
| # 12 |
Transocean Ltd. |
3,524 |
19,371 |
4,439 |
| # 13 |
Ovintiv Inc. |
9,152 |
19,254 |
10,040 |
| # 14 |
Permian Resources Corp |
5,001 |
16,898 |
11,262 |
| # 15 |
Civitas Resources Inc. |
5,207 |
14,944 |
|
| # 16 |
Chord Energy Corp |
5,251 |
13,032 |
5,283 |
| # 17 |
ANTERO RESOURCES Corp |
4,326 |
13,010 |
10,527 |
| # 18 |
Matador Resources Co |
3,505 |
10,850 |
5,125 |
| # 19 |
Murphy Oil Corporation |
3,028 |
9,667 |
4,304 |
| # 20 |
Crescent Energy Co |
2,931 |
9,161 |
2,362 |
| # 21 |
SM Energy Co |
2,690 |
8,577 |
2,133 |
| # 22 |
CNX Resources Corp |
1,267 |
8,512 |
4,953 |
| # 23 |
Noble Corp plc |
3,058 |
7,965 |
|
| # 24 |
Range Resources Corporation |
2,417 |
7,348 |
9,018 |
| # 25 |
California Resources Corp |
3,198 |
7,135 |
4,050 |
| # 26 |
Comstock Resources Inc. |
1,254 |
6,382 |
7,433 |
| # 27 |
Talos Energy Inc. |
1,974 |
6,192 |
1,834 |
| # 28 |
Vital Energy, Inc. |
1,952 |
5,879 |
1,447 |
| # 29 |
Patterson-UTI Energy Inc. |
5,378 |
5,833 |
2,262 |
| # 30 |
Helmerich & Payne, Inc. |
2,757 |
5,817 |
2,755 |
| # 31 |
Northern Oil and Gas Inc. |
2,226 |
5,604 |
2,163 |
| # 32 |
Kosmos Energy Ltd. |
1,675 |
5,309 |
677 |
| # 33 |
Viper Energy, Inc. |
860 |
5,069 |
13,625 |
| # 34 |
Sitio Royalties Corp. |
624 |
4,744 |
|
| # 35 |
Nabors Industries Ltd. |
2,930 |
4,504 |
|
| # 36 |
Valaris Ltd |
2,363 |
4,420 |
|
| # 37 |
Seadrill Ltd |
1,385 |
4,156 |
1,865 |
| # 38 |
Hess Midstream LP |
1,496 |
4,151 |
4,333 |
| # 39 |
Par Pacific Holdings Inc. |
7,974 |
3,829 |
2,222 |
| # 40 |
Liberty Energy Inc. |
4,315 |
3,296 |
2,553 |
| # 41 |
HighPeak Energy, Inc. |
1,069 |
3,063 |
|
| # 42 |
ProFrac Holding Corp. |
2,191 |
2,988 |
676 |
| # 43 |
Gulfport Energy Corporation |
958 |
2,866 |
4,071 |
| # 44 |
Magnolia Oil & Gas Corp |
1,316 |
2,821 |
4,317 |
| # 45 |
Helix Energy Solutions Group Inc. |
1,359 |
2,597 |
997 |
| # 46 |
Mach Natural Resources LP |
970 |
2,338 |
2,016 |
| # 47 |
Oceaneering International Inc. |
2,661 |
2,336 |
2,397 |
| # 48 |
Expro Group Holdings N.V. |
1,713 |
2,334 |
1,551 |
| # 49 |
BKV Corp |
605 |
2,231 |
2,512 |
| # 50 |
Atlas Energy Solutions Inc. |
1,056 |
1,973 |
1,092 |
| # 51 |
Gran Tierra Energy Inc. |
622 |
1,655 |
154 |
| # 52 |
Sable Offshore Corp. |
0 |
1,583 |
423 |
| # 53 |
Berry Corp (bry) |
784 |
1,518 |
267 |
| # 54 |
Aris Water Solutions, Inc. |
435 |
1,420 |
|
| # 55 |
Ring Energy Inc. |
366 |
1,408 |
204 |
| # 56 |
RPC Inc. |
1,415 |
1,386 |
1,188 |
| # 57 |
Select Water Solutions, Inc. |
1,452 |
1,366 |
1,215 |
| # 58 |
ProPetro Holding Corp. |
1,444 |
1,224 |
1,039 |
| # 59 |
Black Stone Minerals, L.P. |
434 |
1,219 |
3,086 |
| # 60 |
Kimbell Royalty Partners, LP |
309 |
1,120 |
1,483 |
| # 61 |
W&T Offshore Inc. |
525 |
1,099 |
284 |
| # 62 |
Granite Ridge Resources, Inc. |
380 |
1,036 |
677 |
| # 63 |
TXO Partners, L.P. |
283 |
1,031 |
740 |
| # 64 |
Riley Exploration Permian, Inc. |
410 |
994 |
570 |
| # 65 |
VAALCO Energy Inc. |
479 |
955 |
401 |
| # 66 |
Vitesse Energy, Inc. |
242 |
811 |
814 |
| # 67 |
Amplify Energy Corp. |
295 |
747 |
230 |
| # 68 |
Tetra Technologies Inc. |
599 |
605 |
1,041 |
| # 69 |
Core Laboratories Inc. /DE/ |
524 |
590 |
715 |
| # 70 |
SandRidge Energy Inc. |
125 |
582 |
525 |
| # 71 |
Natural Gas Services Group Inc. |
157 |
493 |
371 |
| # 72 |
KLX Energy Services Holdings, Inc. |
709 |
456 |
29 |
| # 73 |
Battalion Oil Corporation |
194 |
431 |
18 |
| # 74 |
Mammoth Energy Services Inc. |
188 |
384 |
94 |
| # 75 |
Ranger Energy Services, Inc. |
571 |
382 |
302 |
| # 76 |
Dorchester Minerals L.P. |
162 |
367 |
1,141 |
| # 77 |
Nine Energy Service, Inc. |
554 |
360 |
19 |
| # 78 |
ENERGY 11, L.P. |
86 |
354 |
|
| # 79 |
PHX Minerals Inc. |
35 |
164 |
|
| # 80 |
ENERGY RESOURCES 12, L.P. |
36 |
162 |
|
| # 81 |
EVOLUTION PETROLEUM CORP |
86 |
160 |
148 |
| # 82 |
Prairie Operating Co. |
8 |
157 |
87 |
| # 83 |
NCS Multistage Holdings, Inc. |
163 |
153 |
95 |
| # 84 |
Pedevco Corp. |
40 |
134 |
53 |
| # 85 |
Empire Petroleum Corporation |
44 |
124 |
103 |
| # 86 |
Epsilon Energy Ltd. |
32 |
120 |
106 |
| # 87 |
AleAnna, Inc. |
1 |
83 |
13 |
| # 88 |
U.S. Energy Corp. |
21 |
50 |
36 |
| # 89 |
EVERFLOW EASTERN PARTNERS LP |
5 |
45 |
|
| # 90 |
Reserve Petroleum Co |
15 |
36 |
|
| # 91 |
Zion Oil & Gas Inc |
|
32 |
|
| # 92 |
Barnwell Industries Inc. |
20 |
26 |
12 |
| # 93 |
Mexco Energy Corporation |
5 |
20 |
18 |
| # 94 |
CKX Lands Inc. |
2 |
19 |
21 |
| # 95 |
Arcadia Biosciences, Inc. |
5 |
14 |
5 |
| # 96 |
RIDGEWOOD ENERGY O FUND LLC |
7 |
13 |
|
| # 97 |
Trio Petroleum Corp. |
0 |
13 |
8 |
| # 98 |
Permex Petroleum Corp |
0 |
11 |
|
| # 99 |
RIDGEWOOD ENERGY X FUND, LLC |
3 |
11 |
|
| # 100 |
RIDGEWOOD ENERGY Y FUND LLC |
6 |
11 |
|