Oklahoma Employer EIN Lookup
Use this OklahomaEIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 7,546 employers based in Oklahoma have filed a Form 5500, covering 8,764 retirement and health plans with $57.7B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.
Employers
7,546
Plans
8,764
Total assets
$57.7B
Largest employers in Oklahoma by EIN
Form 5500 search →| Employer | EIN | City | Plans | Participants | Assets |
|---|---|---|---|---|---|
| Quiktrip Corporation | 73-0675375 | Tulsa | 4 | 32,480 | $4.8B |
| The Williams Companies, Inc. | 73-0569878 | Tulsa | 11 | 32,763 | $3.4B |
| One Gas, Inc. | 46-3561936 | Tulsa | 4 | 8,435 | $1.9B |
| Integris Health, Inc. | 73-1192764 | Oklahoma City | 5 | 35,901 | $1.9B |
| Oneok, Inc. | 73-1520922 | Tulsa | 7 | 22,015 | $1.8B |
| Pipeline Industry Pension Fund | 73-6146433 | Tulsa | 1 | 2,034 | $1.7B |
| Devon Energy Corporation | 73-1567067 | Oklahoma City | 7 | 7,281 | $1.5B |
| Saint Francis Health System Inc. | 73-1501972 | Tulsa | 11 | 53,265 | $1.4B |
| American Fidelity Corporation | 73-0966202 | Oklahoma City | 3 | 8,623 | $1.2B |
| BOKF, NA | 73-0780382 | Tulsa | 6 | 20,162 | $1.2B |
| OGE Energy Corp. | 73-1481638 | Oklahoma City | 5 | 9,798 | $1.1B |
| Helmerich & Payne, Inc. | 73-0679879 | Tulsa | 2 | 6,451 | $892.9M |
| Alliance Coal, LLC | 73-0956034 | Tulsa | 5 | 14,931 | $740.4M |
| Hilti, Inc. | 06-0732334 | Tulsa | 9 | 28,450 | $685.6M |
| Hobby Lobby Stores, Inc. | 73-1032203 | Oklahoma City | 5 | 70,380 | $668.6M |
| Expand Energy Corporation | 73-1395733 | Oklahoma City | 3 | 1,775 | $639.8M |
| OU Medicine, Inc. | 82-1883948 | Oklahoma City | 2 | 18,553 | $591.5M |
| 899210-01 Nextep, Inc. | 73-1543198 | Norman | 2 | 37,812 | $566.4M |
| Cherokee Nation Businesses, LLC | 11-3784371 | Catoosa | 5 | 15,103 | $497.3M |
| Midfirst Bank | 73-0383055 | Oklahoma City | 2 | 6,362 | $485.6M |
| Bancfirst Corporation | 73-1221379 | Oklahoma City | 3 | 5,582 | $434.5M |
| Love's Travel Stops & Country Stores, Inc. | 73-1220756 | Oklahoma City | 2 | 69,705 | $431.1M |
| The University of Tulsa | 73-0579298 | Tulsa | 2 | 2,244 | $427.4M |
| Choctaw Nation of Oklahoma | 73-0717979 | Durant | 2 | 23,669 | $424.7M |
| Continental Resources, Inc. | 73-0767549 | Oklahoma City | 2 | 2,712 | $389.7M |
| Chickasaw Nation | 73-1374986 | ADA | 2 | 18,204 | $382.9M |
| AAON, Inc. | 73-1328149 | Tulsa | 1 | 5,794 | $381.3M |
| Spend Life Wisely Company, Inc. | 73-0936842 | Durant | 1 | 1,858 | $363.2M |
| Diamondback E & P LLC | 36-4728559 | Oklahoma City | 4 | 1,040 | $343.0M |
| Pipeline Industry 401(k) Fund | 26-3051108 | Tulsa | 1 | 2,034 | $340.4M |
| Oklahoma Heart Hospital LLC | 73-1575187 | Oklahoma City | 2 | 4,810 | $340.0M |
| Locke Supply Co. | 73-0689366 | Oklahoma City | 3 | 4,020 | $330.7M |
| Paycom Payroll, LLC | 26-0302465 | Oklahoma City | 2 | 14,288 | $322.4M |
| Dolese Bros. Co. | 73-1359190 | Oklahoma City | 6 | 5,163 | $266.5M |
| The Nordam Group LLC | 73-1017803 | Tulsa | 2 | 2,975 | $251.4M |
| Magellan Midstream Holdings GP, LLC | 20-0019326 | Tulsa | 5 | 3,080 | $228.0M |
| Pioneer Telephone Cooperative, Inc. | 73-0618715 | Kingfisher | 3 | 1,146 | $226.2M |
| Matrix Service Company | 73-1352174 | Tulsa | 4 | 3,903 | $215.7M |
| Crowe & Dunlevy, a Professional Corporation | 73-1055796 | Oklahoma City | 2 | 354 | $210.7M |
| IBEW LU-1141 Pension Trust | 73-6109391 | Oklahoma City | 1 | 1,944 | $188.7M |
| McAfee & TAFT a Professional Corporation | 73-0781676 | Oklahoma City | 2 | 632 | $183.3M |
| Maxcess International Corporation | 04-3041994 | Oklahoma City | 1 | 1,103 | $179.9M |
| Schusterman Interests, LLC | 85-3282808 | Tulsa | 2 | 622 | $172.5M |
| Metro Builders Supply, Inc. | 73-1002859 | Tulsa | 2 | 1,819 | $169.1M |
| Oklahoma Medical Research Foundation | 73-0580274 | Oklahoma City | 3 | 1,454 | $159.3M |
| W&W-AFCO Steel LLC | 35-2530653 | Oklahoma City | 3 | 2,157 | $152.4M |
| Rooney Holdings, Inc. | 73-1237809 | Tulsa | 2 | 4,788 | $150.7M |
| Ascent Resources Management Services, LLC | 61-1855879 | Oklahoma City | 2 | 869 | $140.8M |
| CX Marketing, LLC | 92-3890344 | Tulsa | 1 | 4,483 | $139.2M |
| Zeeco, Inc. | 73-1074490 | Broken Arrow | 2 | 1,672 | $134.6M |
| TD Williamson, LLC | 73-0399110 | Tulsa | 3 | 1,818 | $127.8M |
| Omni Air International, LLC | 20-0605928 | Tulsa | 3 | 1,273 | $123.1M |
| Cactus Drilling Company, LLC | 27-0017663 | Oklahoma City | 2 | 2,276 | $123.0M |
| Explorer Pipeline Company | 73-0785982 | Tulsa | 3 | 549 | $122.8M |
| Aberdeen Dynamics Supply, Inc. | 73-0958074 | Tulsa | 1 | 175 | $119.4M |
| Oklahoma Farm Bureau Mutual Insurance Co | 73-0540035 | Oklahoma City | 3 | 1,045 | $118.6M |
| McBride Clinic, Inc. | 73-0714291 | Oklahoma City | 6 | 3,795 | $117.8M |
| Kaiser-Francis Oil Company | 73-1006655 | Tulsa | 2 | 647 | $117.3M |
| NGL Energy Holdings, LLC | 27-3423067 | Tulsa | 2 | 1,049 | $117.2M |
| Flintco, LLC | 27-3321079 | Tulsa | 2 | 1,468 | $113.5M |
| Moore, a Series | 73-1500541 | Tulsa | 1 | 3,916 | $113.4M |
| Crosby US Acquisition Corp. | 46-3917668 | Tulsa | 18 | 3,427 | $110.4M |
| Conner & Winters, LLP | 73-1388566 | Tulsa | 4 | 308 | $109.9M |
| Balon Corporation | 73-0745177 | Oklahoma City | 2 | 2,044 | $106.3M |
| Tinker Federal Credit Union | 73-0560023 | Tinker AFB | 9 | 2,822 | $106.1M |
| Hall, Estill, Hardwick, Gable, Golden & Nelson, P.C. | 73-0931831 | Tulsa | 3 | 522 | $103.1M |
| Kimray, Inc. | 73-0563687 | Oklahoma City | 2 | 1,297 | $100.1M |
| Webco Industries, Inc. | 73-1097133 | Sand Springs | 2 | 2,743 | $99.9M |
| Pipeline Industry Benefit Fund | 73-0742835 | Tulsa | 1 | 1,865 | $99.5M |
| Sheet Metal Workers Local No. 124 Pension Plan | 73-6145795 | Oklahoma City | 2 | 628 | $95.1M |
| Trustees, Oklahoma State Pipe Trades Annuity Fund | 73-1153085 | Tulsa | 1 | 2,257 | $93.2M |
| CNI Government, LLC | 36-4698741 | Norman | 1 | 1,430 | $92.2M |
| Gemini Industries, Inc. | 73-0743590 | El RENO | 2 | 312 | $92.1M |
| Associated Anesthesiologists, Inc. | 73-0716044 | Tulsa | 1 | 128 | $86.4M |
| The Cummins Construction Company, Inc. | 73-0626847 | ENID | 3 | 451 | $82.9M |
| Delaware Resource Group of Oklahoma, LLC | 20-0458298 | Oklahoma City | 5 | 2,852 | $82.4M |
| Noble Research Institute, LLC | 73-0606209 | Ardmore | 3 | 557 | $82.2M |
| The BAMA Companies, Inc. | 73-0988323 | Tulsa | 5 | 1,576 | $78.2M |
| C. H. Guernsey & Company | 73-0590816 | Oklahoma City | 3 | 424 | $75.7M |
| Gateway First Bank | 73-1577221 | Jenks | 2 | 1,397 | $75.5M |
| Oral Roberts University | 73-0739626 | Tulsa | 2 | 1,068 | $74.7M |
| James Baker Group Inc. | 73-1402976 | Oklahoma City | 2 | 241 | $74.2M |
| Hogantaylor LLP | 73-1413977 | Tulsa | 3 | 982 | $72.9M |
| Advanced Orthopedics of Oklahoma, PLLC | 81-3249663 | Tulsa | 2 | 555 | $70.4M |
| Sagenet LLC | 73-1551328 | Tulsa | 1 | 447 | $69.4M |
| Blackhawk Industrial Distribution, Inc. | 27-3505619 | Tulsa | 2 | 2,257 | $68.4M |
| Mathis Bros. Oklahoma City, LLC | 20-0509563 | Oklahoma City | 2 | 3,256 | $67.8M |
| The Hawthorn Group, Inc. | 74-3073830 | Tulsa | 3 | 4,044 | $66.6M |
| Lopez Food, Inc. | 73-1348891 | Oklahoma City | 7 | 2,890 | $66.3M |
| Duncan Regional Hospital, Inc. | 73-1008550 | Duncan | 3 | 1,503 | $64.8M |
| McElroy Manufacturing, Inc. | 73-0722906 | Tulsa | 2 | 1,043 | $64.8M |
| Vital Energy, Inc. | 45-3007926 | Tulsa | 2 | 771 | $64.3M |
| Citizen Potawatomi Nation | 73-0945447 | Shawnee | 1 | 2,260 | $63.4M |
| Urologic Specialists of Oklahoma, Inc. | 73-0729369 | Tulsa | 2 | 334 | $63.4M |
| CFS Brands LLC | 31-1075965 | Oklahoma City | 2 | 1,715 | $63.3M |
| Griffin Television OKC, LLC | 73-1455527 | Oklahoma City | 1 | 421 | $62.9M |
| Groendyke Transport Inc. | 73-0565246 | ENID | 2 | 2,191 | $62.5M |
| Plumbers and Pipefitters Local 344 | 73-0467693 | Oklahoma City | 1 | 1,459 | $61.6M |
| Communitycare, HMO, Inc. | 73-1433979 | Tulsa | 3 | 1,423 | $61.4M |
| JRMB II, Inc. | 27-3629393 | Lawton | 3 | 1,527 | $60.6M |
EINs are drawn from the Form 5500 the employer filed with the U.S. Department of Labor. An employer’s EIN is the same across all of its plans — open a filing to confirm the sponsor name and address before relying on it.
How to find an employer’s EIN in Oklahoma
Every employer that sponsors a retirement or health plan files a Form 5500 that lists its nine-digit Employer Identification Number. Find a Oklahoma company in the table above, or run a Form 5500 search by company name to pull the filing and read the EIN directly from it.
For a broader view of plans in the state — including industry breakdowns and the largest plans by assets — see Form 5500 plans in Oklahoma. New to these filings? Start with What is Form 5500?
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