{
  "name": "Largest US Oil & Gas Operators by Wells Operated",
  "publisher": "Buckhead Energy",
  "url": "https://www.buckheadenergy.com/top-operators-us",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "doi": "https://doi.org/10.5281/zenodo.21442884",
  "dataAsOf": "2026-08-06",
  "count": 100,
  "operators": [
    {
      "operatorSlug": "chevron",
      "operatorName": "Chevron",
      "totalWells": 75591,
      "producingWells": 44338,
      "permits24mo": 3078,
      "ducCount": 12035,
      "states": "CA,TX,LA,NM,OK,WY,CO,OH,MS,PA,UT,KS,ND,WV,AK,MT,AL,NE,MI,AR,NV,FL,SD,ID",
      "topFormation": "Monterey-Temblor",
      "dataAsOf": "2026-08-06",
      "rank": 1
    },
    {
      "operatorSlug": "diversified-production-llc",
      "operatorName": "Diversified Production LLC",
      "totalWells": 59660,
      "producingWells": 58128,
      "permits24mo": 235,
      "ducCount": 483,
      "states": "PA,WV,OH,TX,OK,LA,VA,TN,AL,KY",
      "topFormation": "Marcellus",
      "dataAsOf": "2026-08-06",
      "rank": 2
    },
    {
      "operatorSlug": "aera-energy",
      "operatorName": "Aera Energy",
      "totalWells": 57816,
      "producingWells": 39121,
      "permits24mo": 2220,
      "ducCount": 7401,
      "states": "CA,MI",
      "topFormation": "Monterey-Temblor",
      "dataAsOf": "2026-08-06",
      "rank": 3
    },
    {
      "operatorSlug": "hilcorp-energy-company",
      "operatorName": "Hilcorp Energy Company",
      "totalWells": 51803,
      "producingWells": 47159,
      "permits24mo": 975,
      "ducCount": 2740,
      "states": "TX,NM,AK,LA,WY,CO,PA,OH,AL,MS",
      "topFormation": "Wilcox Lobo",
      "dataAsOf": "2026-08-06",
      "rank": 4
    },
    {
      "operatorSlug": "exxonmobil",
      "operatorName": "ExxonMobil",
      "totalWells": 39246,
      "producingWells": 16119,
      "permits24mo": 991,
      "ducCount": 10201,
      "states": "TX,OK,LA,NM,CA,ND,IL,KS,PA,WY,UT,AR,CO,MI,WV,FL,MS,AL,MT,AK,OH,NE,KY,TN,NV,NY,OR,AZ,ID",
      "topFormation": "Vicksburg",
      "dataAsOf": "2026-08-06",
      "rank": 5
    },
    {
      "operatorSlug": "eog",
      "operatorName": "EOG Resources",
      "totalWells": 38517,
      "producingWells": 16745,
      "permits24mo": 1622,
      "ducCount": 3690,
      "states": "WY,TX,NM,OK,ND,PA,UT,KS,CO,MS,OH,LA,CA,MT,NY,VA,WV,AR,NV,MI,AL",
      "topFormation": "Niobrara- Mowry",
      "dataAsOf": "2026-08-06",
      "rank": 6
    },
    {
      "operatorSlug": "oxy",
      "operatorName": "Oxy",
      "totalWells": 36862,
      "producingWells": 28222,
      "permits24mo": 938,
      "ducCount": 3878,
      "states": "TX,NM,KS,OK,CO,CA,WV,LA,WY,MI,NY,MS,ND,MT,VA,KY,TN,AZ,UT,AL,AR,NE,SD,AK",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 7
    },
    {
      "operatorSlug": "scout-energy-management-llc",
      "operatorName": "Scout Energy Management",
      "totalWells": 20798,
      "producingWells": 19029,
      "permits24mo": 116,
      "ducCount": 924,
      "states": "TX,KS,UT,CO,OK,ND,NM,MT",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 8
    },
    {
      "operatorSlug": "pioneer-natural-resources",
      "operatorName": "Pioneer Natural Resources",
      "totalWells": 20504,
      "producingWells": 16701,
      "permits24mo": 1193,
      "ducCount": 1289,
      "states": "TX,LA,CO,KS,UT,WY,AK,OK,NM,MS,MT,ND",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 9
    },
    {
      "operatorSlug": "devon",
      "operatorName": "Devon Energy",
      "totalWells": 17993,
      "producingWells": 8720,
      "permits24mo": 1123,
      "ducCount": 1934,
      "states": "WY,NM,TX,OK,LA,MT,WV,KS,OH,CO,UT,MI,KY,NE,IL,ND,MS,AR,AK,PA",
      "topFormation": "Niobrara- Mowry",
      "dataAsOf": "2026-08-06",
      "rank": 10
    },
    {
      "operatorSlug": "diamondback",
      "operatorName": "Diamondback Energy",
      "totalWells": 17442,
      "producingWells": 14327,
      "permits24mo": 1189,
      "ducCount": 1387,
      "states": "TX,OK,WY,KS,NM,KY,CO,PA,LA,MT,ND",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 11
    },
    {
      "operatorSlug": "apache-corporation",
      "operatorName": "Apache",
      "totalWells": 16986,
      "producingWells": 10607,
      "permits24mo": 345,
      "ducCount": 3973,
      "states": "TX,LA,NM,OK,WY,KY,ND,MT,CO,AR,KS,NV,NE,MS,MI,UT,CA,AZ,AK,IL,SD,PA,AL,NY",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 12
    },
    {
      "operatorSlug": "chesapeake-energy",
      "operatorName": "Chesapeake Energy",
      "totalWells": 16805,
      "producingWells": 4066,
      "permits24mo": 1,
      "ducCount": 5658,
      "states": "OK,TX,PA,WY,KY,OH,WV,LA,KS,NM,NY,AR,ND,CO,TN,MT,VA,AL,UT",
      "topFormation": "Woodford",
      "dataAsOf": "2026-08-06",
      "rank": 13
    },
    {
      "operatorSlug": "marathon-oil-company",
      "operatorName": "Marathon Oil Company",
      "totalWells": 16399,
      "producingWells": 6559,
      "permits24mo": 255,
      "ducCount": 2606,
      "states": "TX,IL,WY,ND,NM,OK,LA,MI,KS,CA,NE,CO,AR,UT,MS,AK,KY,MT,NV,WV,PA,AZ",
      "topFormation": "Austin Chalk",
      "dataAsOf": "2026-08-06",
      "rank": 14
    },
    {
      "operatorSlug": "texaco",
      "operatorName": "Texaco",
      "totalWells": 16152,
      "producingWells": 2926,
      "permits24mo": 0,
      "ducCount": 6851,
      "states": "LA,TX,IL,KY,KS,OK,UT,ND,MS,NE,MT,AK,CA,MI,OH,AR,NV,AL,AZ,SD,PA,MO,FL,VA,NY,TN,OR,CO,ID,WA",
      "topFormation": "Travis Peak",
      "dataAsOf": "2026-08-06",
      "rank": 15
    },
    {
      "operatorSlug": "conocophillips-company",
      "operatorName": "Conocophillips Company",
      "totalWells": 15404,
      "producingWells": 5185,
      "permits24mo": 216,
      "ducCount": 5003,
      "states": "TX,AK,OK,NM,LA,WY,CO,CA,MT,UT,ND,KS,MI,MO,MS,AR,NV,AL,KY,IL,FL,NE",
      "topFormation": "Wilcox Lobo",
      "dataAsOf": "2026-08-06",
      "rank": 16
    },
    {
      "operatorSlug": "anadarko-petroleum",
      "operatorName": "Anadarko Petroleum",
      "totalWells": 15357,
      "producingWells": 4011,
      "permits24mo": 562,
      "ducCount": 2717,
      "states": "WY,TX,KS,CO,OK,PA,LA,NM,UT,MT,AR,ND,MS,NE,OH,AK,CA,MO,NV,AZ,SD",
      "topFormation": "Niobrara- Mowry",
      "dataAsOf": "2026-08-06",
      "rank": 17
    },
    {
      "operatorSlug": "shell-oil-company",
      "operatorName": "Shell Oil Company",
      "totalWells": 15331,
      "producingWells": 1966,
      "permits24mo": 6,
      "ducCount": 4572,
      "states": "LA,CA,MI,TX,IL,OK,PA,WY,MT,CO,MS,NY,NE,ND,UT,MO,KY,AK,KS,WA,NM,OH,AL,SD,AR,NV,FL,TN,OR,AZ,ID,WV",
      "topFormation": "Austin Chalk",
      "dataAsOf": "2026-08-06",
      "rank": 18
    },
    {
      "operatorSlug": "california-resources-production",
      "operatorName": "California Resources Production",
      "totalWells": 15274,
      "producingWells": 8929,
      "permits24mo": 764,
      "ducCount": 1327,
      "states": "CA",
      "topFormation": "Monterey-Temblor",
      "dataAsOf": "2026-08-06",
      "rank": 19
    },
    {
      "operatorSlug": "pennzoil-production-company",
      "operatorName": "Pennzoil Production Company",
      "totalWells": 15217,
      "producingWells": 1104,
      "permits24mo": 0,
      "ducCount": 3271,
      "states": "PA,NY,TX,LA,MS,ND,UT,MT,KY,AR,WY,CO,OK,FL,AL,MI,AZ,CA,NM,NV,AK,SD",
      "topFormation": "Utica",
      "dataAsOf": "2026-08-06",
      "rank": 20
    },
    {
      "operatorSlug": "noble-energy-inc",
      "operatorName": "Noble Energy",
      "totalWells": 15164,
      "producingWells": 9466,
      "permits24mo": 169,
      "ducCount": 1146,
      "states": "CO,WY,TX,OK,LA,OH,KS,NE,MT,IL,WV,PA,CA,NM,NV,MS,UT,KY,NY",
      "topFormation": "Muddy J Sand",
      "dataAsOf": "2026-08-06",
      "rank": 21
    },
    {
      "operatorSlug": "citation-oil-gas-corp",
      "operatorName": "Citation Oil & Gas",
      "totalWells": 15083,
      "producingWells": 8116,
      "permits24mo": 85,
      "ducCount": 4785,
      "states": "OK,TX,WY,IL,KS,CO,ND,MT,UT,NM,SD,LA,MS,NE",
      "topFormation": "Woodford",
      "dataAsOf": "2026-08-06",
      "rank": 22
    },
    {
      "operatorSlug": "quaker-state",
      "operatorName": "Quaker State",
      "totalWells": 14999,
      "producingWells": 256,
      "permits24mo": 0,
      "ducCount": 855,
      "states": "PA,NY,WV",
      "topFormation": "Utica",
      "dataAsOf": "2026-08-06",
      "rank": 23
    },
    {
      "operatorSlug": "bpx-operating-company",
      "operatorName": "Bpx Operating Company",
      "totalWells": 12740,
      "producingWells": 6721,
      "permits24mo": 445,
      "ducCount": 3287,
      "states": "TX,WY,OK,AK,NM,LA,KS,MI,CO,PA,CA,OH,IL,UT",
      "topFormation": "Austin Chalk",
      "dataAsOf": "2026-08-06",
      "rank": 24
    },
    {
      "operatorSlug": "merit-energy-company",
      "operatorName": "Merit Energy Company",
      "totalWells": 12115,
      "producingWells": 10072,
      "permits24mo": 17,
      "ducCount": 1343,
      "states": "TX,OK,WY,AR,KS,MI,LA,CA,NM,CO,UT,MT,KY,SD,ND",
      "topFormation": "Vicksburg",
      "dataAsOf": "2026-08-06",
      "rank": 25
    },
    {
      "operatorSlug": "basa-resources-inc",
      "operatorName": "BASA Resources",
      "totalWells": 11686,
      "producingWells": 11339,
      "permits24mo": 16,
      "ducCount": 156,
      "states": "TX,OK",
      "topFormation": "Travis Peak",
      "dataAsOf": "2026-08-06",
      "rank": 26
    },
    {
      "operatorSlug": "berry-petroleum-company",
      "operatorName": "Berry Petroleum Company",
      "totalWells": 11511,
      "producingWells": 7750,
      "permits24mo": 846,
      "ducCount": 993,
      "states": "CA,UT,CO,TX,OK,TN,AR,KS,KY,IL,WY,MS,PA,OH",
      "topFormation": "Monterey-Temblor",
      "dataAsOf": "2026-08-06",
      "rank": 27
    },
    {
      "operatorSlug": "bcemach-iii-llc",
      "operatorName": "Bcemach Iii LLC",
      "totalWells": 11419,
      "producingWells": 10625,
      "permits24mo": 54,
      "ducCount": 523,
      "states": "TX,OK,KS,NM",
      "topFormation": "Granite Wash",
      "dataAsOf": "2026-08-06",
      "rank": 28
    },
    {
      "operatorSlug": "enervest-operating-llc",
      "operatorName": "Enervest Operating",
      "totalWells": 11228,
      "producingWells": 8342,
      "permits24mo": 32,
      "ducCount": 347,
      "states": "VA,LA,OH,TX,PA,OK,UT,NM,MI,WV,AR,CO,WY,NY",
      "topFormation": "Berea-Murrysville",
      "dataAsOf": "2026-08-06",
      "rank": 29
    },
    {
      "operatorSlug": "sentinel-peak-resources-ca",
      "operatorName": "Sentinel Peak Resources Ca",
      "totalWells": 10943,
      "producingWells": 7766,
      "permits24mo": 765,
      "ducCount": 1293,
      "states": "CA",
      "topFormation": "Monterey-Temblor",
      "dataAsOf": "2026-08-06",
      "rank": 30
    },
    {
      "operatorSlug": "kerrmcgee",
      "operatorName": "Kerr-McGee",
      "totalWells": 10936,
      "producingWells": 9070,
      "permits24mo": 287,
      "ducCount": 674,
      "states": "CO,LA,TX,OK,AZ,WY,MI,ND,PA,MS,AR,KS,MT,UT,AL,WV,FL",
      "topFormation": "Muddy J Sand",
      "dataAsOf": "2026-08-06",
      "rank": 31
    },
    {
      "operatorSlug": "the-ohio-oil",
      "operatorName": "The Ohio Oil",
      "totalWells": 10783,
      "producingWells": 0,
      "permits24mo": 0,
      "ducCount": 0,
      "states": "IL,TX",
      "topFormation": "New Albany",
      "dataAsOf": "2026-08-06",
      "rank": 32
    },
    {
      "operatorSlug": "continental",
      "operatorName": "Continental Resources",
      "totalWells": 9909,
      "producingWells": 6713,
      "permits24mo": 538,
      "ducCount": 1067,
      "states": "ND,OK,WY,TX,MT,SD,IL,WV,LA,KY,MI,MS,KS,OH,TN,CO,NM,NE",
      "topFormation": "Bakken",
      "dataAsOf": "2026-08-06",
      "rank": 33
    },
    {
      "operatorSlug": "burk-royalty-co-ltd",
      "operatorName": "Burk Royalty",
      "totalWells": 9780,
      "producingWells": 8631,
      "permits24mo": 62,
      "ducCount": 523,
      "states": "TX,OK,NM,WY,LA,KS,AR",
      "topFormation": "Granite Wash",
      "dataAsOf": "2026-08-06",
      "rank": 34
    },
    {
      "operatorSlug": "eqt-production-company",
      "operatorName": "EQT Production Company",
      "totalWells": 9454,
      "producingWells": 5472,
      "permits24mo": 328,
      "ducCount": 580,
      "states": "PA,WV,KY,VA,OH,TX",
      "topFormation": "Marcellus",
      "dataAsOf": "2026-08-06",
      "rank": 35
    },
    {
      "operatorSlug": "pdc-energy",
      "operatorName": "PDC Energy",
      "totalWells": 8937,
      "producingWells": 6905,
      "permits24mo": 157,
      "ducCount": 323,
      "states": "CO,TX,KS,OH",
      "topFormation": "Muddy J Sand",
      "dataAsOf": "2026-08-06",
      "rank": 36
    },
    {
      "operatorSlug": "occidental",
      "operatorName": "Occidental Petroleum (Oxy)",
      "totalWells": 8835,
      "producingWells": 5981,
      "permits24mo": 315,
      "ducCount": 383,
      "states": "WY,TX,MT,OK,NM,AR,NV,KS",
      "topFormation": "Niobrara- Mowry",
      "dataAsOf": "2026-08-06",
      "rank": 37
    },
    {
      "operatorSlug": "cog-operating-llc",
      "operatorName": "COG Operating",
      "totalWells": 8421,
      "producingWells": 6137,
      "permits24mo": 427,
      "ducCount": 364,
      "states": "TX,NM",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 38
    },
    {
      "operatorSlug": "phillips-petroleum-company",
      "operatorName": "Phillips Petroleum Company",
      "totalWells": 7996,
      "producingWells": 1537,
      "permits24mo": 8,
      "ducCount": 2383,
      "states": "TX,PA,IL,LA,CA,KS,AR,WY,NM,MT,CO,OK,AZ,UT,MS,MI,KY,AL,ND,OH,SD,NE,AK,MO,NV,FL,TN,ID,WA,OR",
      "topFormation": "Granite Wash",
      "dataAsOf": "2026-08-06",
      "rank": 39
    },
    {
      "operatorSlug": "burlington-resources-oil-gas-company",
      "operatorName": "Burlington Resources Oil & Gas Company",
      "totalWells": 7655,
      "producingWells": 5003,
      "permits24mo": 615,
      "ducCount": 913,
      "states": "TX,NM,ND,OK,WY,MT,LA,CO,OH,KS,MI,NE",
      "topFormation": "Austin Chalk",
      "dataAsOf": "2026-08-06",
      "rank": 40
    },
    {
      "operatorSlug": "california-resources-elk-hills-llc",
      "operatorName": "California Resources Elk Hills LLC",
      "totalWells": 7575,
      "producingWells": 6776,
      "permits24mo": 912,
      "ducCount": 352,
      "states": "CA",
      "topFormation": "Monterey-Temblor",
      "dataAsOf": "2026-08-06",
      "rank": 41
    },
    {
      "operatorSlug": "southern-community",
      "operatorName": "Southern Community",
      "totalWells": 7454,
      "producingWells": 2689,
      "permits24mo": 89,
      "ducCount": 1969,
      "states": "KS,TX,LA,MS,CA,IL,OK,KY,OH,WY,CO,TN,AR,UT,WV,NE,ND,MT,MI,NM,AL,PA,NV,ID,NY,MO,FL",
      "topFormation": "Excello-Mulky",
      "dataAsOf": "2026-08-06",
      "rank": 42
    },
    {
      "operatorSlug": "upp-operating-llc",
      "operatorName": "Upp Operating LLC",
      "totalWells": 7411,
      "producingWells": 7337,
      "permits24mo": 19,
      "ducCount": 68,
      "states": "TX",
      "topFormation": "Ozona Canyon",
      "dataAsOf": "2026-08-06",
      "rank": 43
    },
    {
      "operatorSlug": "ows-acquisition-co-llc",
      "operatorName": "Ows Acquisition Co. LLC",
      "totalWells": 7269,
      "producingWells": 7241,
      "permits24mo": 17,
      "ducCount": 20,
      "states": "OH,PA,WV",
      "topFormation": "Utica",
      "dataAsOf": "2026-08-06",
      "rank": 44
    },
    {
      "operatorSlug": "union-oil-company-of-california",
      "operatorName": "Union Oil Company Of California",
      "totalWells": 7259,
      "producingWells": 1477,
      "permits24mo": 0,
      "ducCount": 1337,
      "states": "CA,IL,TX,MI,LA,OK,WY,AK,MT,NM,AL,CO,UT,ND,MS,WA,WV,KS,OH,NE,SD,NY,ID",
      "topFormation": "Monterey",
      "dataAsOf": "2026-08-06",
      "rank": 45
    },
    {
      "operatorSlug": "anschutz-exploration",
      "operatorName": "Anschutz Exploration",
      "totalWells": 7202,
      "producingWells": 511,
      "permits24mo": 351,
      "ducCount": 702,
      "states": "WY,UT,CO,MT,TX,ND,MO,NE,NY,IL,OK,OH,CA,KS,ID,AR,PA,NV,NM,AL",
      "topFormation": "Niobrara- Mowry",
      "dataAsOf": "2026-08-06",
      "rank": 46
    },
    {
      "operatorSlug": "formentera-operations-llc",
      "operatorName": "Formentera Operations LLC",
      "totalWells": 7004,
      "producingWells": 6601,
      "permits24mo": 149,
      "ducCount": 236,
      "states": "TX,ND,OK,LA,MS",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 47
    },
    {
      "operatorSlug": "mobil-oil",
      "operatorName": "Mobil Oil",
      "totalWells": 6802,
      "producingWells": 911,
      "permits24mo": 0,
      "ducCount": 2031,
      "states": "TX,CA,LA,IL,WY,UT,NM,MT,AR,CO,MS,OK,MI,AK,AL,NE,FL,ND,KY,NV,OR,SD,KS,WA",
      "topFormation": "Vicksburg",
      "dataAsOf": "2026-08-06",
      "rank": 48
    },
    {
      "operatorSlug": "ovintiv-usa-inc",
      "operatorName": "Ovintiv USA Inc.",
      "totalWells": 6766,
      "producingWells": 3978,
      "permits24mo": 402,
      "ducCount": 1171,
      "states": "TX,OK,UT,WY,NM,ND,MT",
      "topFormation": "Thirty-one Carbonate-Chert",
      "dataAsOf": "2026-08-06",
      "rank": 49
    },
    {
      "operatorSlug": "urban-oil-gas-group-llc",
      "operatorName": "Urban Oil & Gas Group",
      "totalWells": 6691,
      "producingWells": 6287,
      "permits24mo": 4,
      "ducCount": 279,
      "states": "AL,TX,WY,UT,LA,OK,AR,KS,IL,NE",
      "topFormation": "Floyd-Neal",
      "dataAsOf": "2026-08-06",
      "rank": 50
    },
    {
      "operatorSlug": "mewbourne-oil-company",
      "operatorName": "Mewbourne Oil Company",
      "totalWells": 6551,
      "producingWells": 4677,
      "permits24mo": 849,
      "ducCount": 795,
      "states": "NM,TX,OK,KS",
      "topFormation": "Avalon-Bone Spring",
      "dataAsOf": "2026-08-06",
      "rank": 51
    },
    {
      "operatorSlug": "amoco-production-company",
      "operatorName": "Amoco Production Company",
      "totalWells": 6432,
      "producingWells": 1626,
      "permits24mo": 0,
      "ducCount": 2390,
      "states": "TX,LA,CO,WY,UT,MS,ND,MT,AL,MI,NE,AR,AK,NV,FL,IL,WA,WV,PA,CA,NY,OR,MO,TN,ID",
      "topFormation": "Travis Peak",
      "dataAsOf": "2026-08-06",
      "rank": 52
    },
    {
      "operatorSlug": "kinder-morgan-production-co-llc",
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      "rank": 55
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    {
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      "rank": 66
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    {
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      "topFormation": "Thirty-one Carbonate-Chert",
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      "topFormation": "Monterey",
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    {
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    {
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      "topFormation": "Thirty-one Carbonate-Chert",
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      "rank": 82
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      "topFormation": "Utica",
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      "rank": 86
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      "topFormation": "Berea-Murrysville",
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    {
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      "topFormation": "Cleveland",
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    {
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    {
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      "topFormation": "Eagle Ford",
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      "rank": 94
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    {
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      "topFormation": "Ozona Canyon",
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      "rank": 95
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    {
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      "rank": 96
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    {
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      "topFormation": "Woodford",
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    {
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      "rank": 98
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    {
      "operatorSlug": "magnolia-petroleum-company",
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      "topFormation": "New Albany",
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      "rank": 99
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    {
      "operatorSlug": "murfin-drilling-company-inc",
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      "states": "KS,CO,ND,SD,MT,OK",
      "topFormation": "Niobrara East",
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      "rank": 100
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  ]
}