How fleet size and driver counts changed among Wyoming trucking companies between November 2025 and October 2026, based on what each company reports to FMCSA. Updated weekly.
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475 active Wyoming carriers that reported at least 5 power units in both November 2025 and October 2026 grew from 6,987 to 7,911 power units (+13.2%). That ranks Wyoming 4 of 50 states by percent change in reported fleet size.
Over the same period their combined reported driver count rose from 5,626 to 6,584 (+17%), compared with +3.2% nationally.
ADMIRAL TRANSPORT CORPORATION added the most power units, from 55 to 519.
Wyoming accounts for 0.6% of the net power units added by comparable carriers nationwide.
The average fleet among these carriers is 16.7 power units, against 34.8 nationally.
38 carriers with at least 5 power units appear in the October 2026 data that were not in the November 2025 data, and 39 carriers from November 2025 no longer appear. These are not counted in the totals above.
| # | Company | USDOT # | HQ | Power units | Added | Growth | Drivers | Added | Growth |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ADMIRAL TRANSPORT CORPORATION | 155142 | Worland, WY | 55 → 519 | +464 | +844% | 50 → 849 | +799 | +1,598% |
| 2 | RMS INSTRUMENT AND ELECTRIC | 2092064 | Gillette, WY | 25 → 127 | +102 | +408% | 25 → 94 | +69 | +276% |
| 3 | HALL TRUCKING INC | 1557547 | Evansville, WY | 85 → 155 | +70 | +82% | 47 → 38 | -9 | -19% |
| 4 | MOUNTAIN LINE INC | 3558740 | Rock Springs, WY | 42 → 90 | +48 | +114% | 42 → 80 | +38 | +90% |
| 5 | GREENE'S ENERGY SERVICES INC | 911472 | Rock Springs, WY | 19 → 58 | +39 | +205% | 11 → 11 | 0 | 0% |
| 6 | BROKEN SPOKE WELDING & CONSTRUCTION INC | 1697819 | Eden, WY | 9 → 32 | +23 | +256% | 4 → 4 | 0 | 0% |
| 7 | MAVERICK OILFIELD SERVICES LLC | 3798212 | Douglas, WY | 17 → 40 | +23 | +135% | 17 → 25 | +8 | +47% |
| 8 | FREEDOM OILFIELD SERVICES INC | 1011033 | Reliance, WY | 43 → 62 | +19 | +44% | 27 → 24 | -3 | -11% |
| 9 | GSS | 2347147 | Evansville, WY | 40 → 58 | +18 | +45% | 57 → 75 | +18 | +32% |
| 10 | TCRI ENERGY SERVICES INC | 692712 | Gillette, WY | 41 → 57 | +16 | +39% | 63 → 89 | +26 | +41% |
| # | Company | USDOT # | HQ | Power units | Added | Growth | Drivers | Added | Growth |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ADMIRAL TRANSPORT CORPORATION | 155142 | Worland, WY | 55 → 519 | +464 | +844% | 50 → 849 | +799 | +1,598% |
| 2 | RMS INSTRUMENT AND ELECTRIC | 2092064 | Gillette, WY | 25 → 127 | +102 | +408% | 25 → 94 | +69 | +276% |
| 3 | REDI INDUSTRIAL SERVICES LLC | 4353757 | Lyman, WY | 31 → 40 | +9 | +29% | 9 → 52 | +43 | +478% |
| 4 | MOUNTAIN LINE INC | 3558740 | Rock Springs, WY | 42 → 90 | +48 | +114% | 42 → 80 | +38 | +90% |
| 5 | TCRI ENERGY SERVICES INC | 692712 | Gillette, WY | 41 → 57 | +16 | +39% | 63 → 89 | +26 | +41% |
| 6 | GSS | 2347147 | Evansville, WY | 40 → 58 | +18 | +45% | 57 → 75 | +18 | +32% |
| 7 | CYCLONE | 307502 | Gillette, WY | 22 → 22 | 0 | 0% | 16 → 28 | +12 | +75% |
| 8 | COBRA TRUCKING INC | 212040 | Casper, WY | 12 → 18 | +6 | +50% | 5 → 15 | +10 | +200% |
| 9 | READY OILFIELD SERVICE INC | 1461167 | Rock Springs, WY | 39 → 29 | -10 | -26% | 31 → 41 | +10 | +32% |
| 10 | DULL KNIFE AG AND EQUIPMENT LLC | 2434697 | Buffalo, WY | 7 → 8 | +1 | +14% | 6 → 16 | +10 | +167% |
| # | Company | USDOT # | HQ | Power units | Added | Growth | Drivers | Added | Growth |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SOS WELL SERVICES LLC | 884577 | La Barge, WY | 31 → 9 | -22 | -71% | 14 → 9 | -5 | -36% |
| 2 | RYAN BROS TRUCKING INC | 101191 | Thermopolis, WY | 69 → 54 | -15 | -22% | 48 → 39 | -9 | -19% |
| 3 | KJ GRIMM ENTERPRISES LLC | 3528127 | Wright, WY | 24 → 10 | -14 | -58% | 24 → 10 | -14 | -58% |
| 4 | DIXON BROSINC | 122815 | Newcastle, WY | 112 → 100 | -12 | -11% | 105 → 87 | -18 | -17% |
| 5 | MAGNUM CEMENTING SERVICES LLC | 3238224 | Cheyenne, WY | 36 → 24 | -12 | -33% | 41 → 43 | +2 | +5% |
| 6 | READY OILFIELD SERVICE INC | 1461167 | Rock Springs, WY | 39 → 29 | -10 | -26% | 31 → 41 | +10 | +32% |
| 7 | FRANK BRENNAN CONSTRUCTION LLC | 1063264 | Rozet, WY | 17 → 9 | -8 | -47% | 3 → 2 | -1 | -33% |
| 8 | WYMAK OIL | 3732745 | Gillette, WY | 14 → 6 | -8 | -57% | 6 → 5 | -1 | -17% |
| 9 | KISSACK WATER & OIL SERVICE INC | 110232 | Rozet, WY | 29 → 22 | -7 | -24% | 30 → 13 | -17 | -57% |
| 10 | KILLION TRUCK LINE LLC | 266103 | Wheatland, WY | 14 → 9 | -5 | -36% | 14 → 9 | -5 | -36% |
Carriers shown are active for-hire carriers with their registered address in Wyoming, at least 5 power units in both months, and no passenger carriers. Counts come from each company's FMCSA (MCS-150) filings, so they are only as current as its last filing, and a large change can be a correction or a merger rather than growth. They do not show hiring or layoffs. See the methodology. More views: fastest by percent growth, fastest driver growth, and the national ranking.
