What is a USDOT number?

The U.S. Department of Transportation number identifies a company that operates commercial vehicles hauling cargo or passengers in interstate commerce, and in many states for trips within the state too.

An MC (motor carrier) number is the operating authority FMCSA grants to for-hire carriers that move regulated goods or passengers across state lines. Private carriers hauling their own goods do not need one.

What do the safety ratings mean?

FMCSA rates a carrier Satisfactory, Conditional or Unsatisfactory after an on-site compliance review. Most carriers have never had a review and are unrated, which does not mean they are unsafe.

Checked Oct 26, 2026

Trucking Companies in Wyoming

Active motor carriers whose principal place of business is in Wyoming.

Active carriers: 6,847
Power units: 24,661; Trucks and tractors reported
Drivers: 23,439
Interstate carriers: 2,807

Carriers in Wyoming

Share of active carriers

For hire (carry goods for others)3,85256.3%
Private (carry their own goods)4,25862.2%
Passenger carriers2784.1%
Hazardous materials79611.6%

Fleet size (power units)

None reported5317.8%
13,09245.2%
2 to 52,35634.4%
6 to 104797.0%
11 to 503465.1%
51 to 100330.5%
More than 100100.1%

Fleet and driver counts are self-reported by each company on FMCSA Form MCS-150 and can be out of date. Values that look like typing errors (for example 99,999 trucks for a small company) are treated as not reported. Pages list companies registered as businesses; owner-operators registered as individuals are counted in totals but not named.

Largest carriers in Wyoming

Swipe the table sideways to see more columns.

#	Company	Base	Power units	Drivers	Type
1	Admiral Transport CorporationUSDOT 155142	Worland, WY	519	849	For hire
2	Redi Services LLCUSDOT 1415274	Lyman, WY	285	375	For hire
3	JTL Group IncUSDOT 281308	Casper, WY	222	63	Passenger
4	Wyoming Machinery CompanyUSDOT 52081	Casper, WY	181	179	Passenger
5	Hall Trucking IncUSDOT 1557547	Evansville, WY	155	38	For hire
6	Titan Electric IncUSDOT 1985582	Evansville, WY	127	159	For hire
7	Natrona County School DistrictUSDOT 3408454	Casper, WY	119	92	Passenger
8	Prairie Field Services LLCUSDOT 2170456	Casper, WY	113	117	For hire
9	Union Telephone CompanyUSDOT 546163	Mountain View, WY	98	64	Private
10	Homax Oil Sales IncUSDOT 175899	Casper, WY	97	64	For hire
11	Bridger Pipeline LLCUSDOT 1238967	Casper, WY	95	53	Private
12	Mountain Line IncUSDOT 3558740	Rock Springs, WY	90	80	For hire
13	Inno Solutions IncUSDOT 899962	Casper, WY	87	87	For hire
14	Visionary Communications LLCUSDOT 4251471	Gillette, WY	87	101	Private
15	Teton Distributors IncUSDOT 381386	Worland, WY	86	41	Private
16	John Bunning Transfer Company IncUSDOT 100378	Rock Springs, WY	82	36	For hire
17	GK Construction IncUSDOT 288449	Lovell, WY	75	36	For hire
18	Blakeman Propane IncUSDOT 345250	Moorcroft, WY	74	46	For hire
19	Desert Mountain CorporationUSDOT 472709	Riverton, WY	73	50	For hire
20	GFT Express LLCUSDOT 4225562	Rock Springs, WY	73	73	For hire
21	R&r Services IncUSDOT 2131618	Boulder, WY	71	48	For hire
22	Element Techincal Services LLCUSDOT 3240911	Bar Nunn, WY	68	27	Private
23	Albany County School District OneUSDOT 536800	Laramie, WY	64	84	Passenger
24	Walker Inspection LLCUSDOT 2575354	Gillete, WY	63	62	Private
25	Freedom Oilfield Services IncUSDOT 1011033	Reliance, WY	62	24	For hire
26	Igo Oil Field Service IncUSDOT 363135	Douglas, WY	60	54	For hire
27	Hayway Logistic LLCUSDOT 4431641	Cheyenne, WY	59	21	For hire
28	Greene's Energy Services IncUSDOT 911472	Rock Springs, WY	58	11	For hire
29	TRK Enterprises IncUSDOT 2146883	Cheyenne, WY	58	57	Private
30	Global Specialized Services LLCUSDOT 2347147	Evansville, WY	58	75	For hire
31	Tcri Energy Services IncUSDOT 692712	Gillette, WY	57	89	For hire
32	High West Energy IncUSDOT 254966	Pine Bluffs, WY	55	37	Private
33	City of CasperUSDOT 535361	Casper, WY	55	124	Passenger
34	Compression Leasing Services IncUSDOT 1026626	Casper, WY	55	55	Private
35	Ryan Bros Trucking IncUSDOT 101191	Thermopolis, WY	54	39	For hire
36	D R M IncUSDOT 316634	Gillette, WY	52	43	For hire
37	Schulte Ta IncUSDOT 863077	Gillette, WY	52	32	Private
38	Big CoUSDOT 100348	Thermopolis, WY	50	16	Private
39	Action Cargo CorporationUSDOT 1294615	Casper, WY	50	107	For hire
40	Nucor IncUSDOT 476802	Riverton, WY	48	29	Private
41	RT Communications IncUSDOT 581709	Worland, WY	48	52	Private
42	Mobile Concrete IncUSDOT 710849	Mills, WY	48	10	Private
43	Wyoming Beverages IncUSDOT 730759	Worland, WY	48	54	Private
44	Firesteel Well Service IncUSDOT 1893018	Moorcroft, WY	48	27	For hire
45	G Bar S Heavy Haul LLCUSDOT 1484076	Cheyenne, WY	47	24	For hire
46	Barnum IncUSDOT 1531806	Buffalo, WY	44	10	For hire
47	Eci LLCUSDOT 3323266	Glenrock, WY	42	30	For hire
48	Waste Connections of Wyoming IncUSDOT 789403	Casper, WY	41	25	Private
49	Western Transport LLCUSDOT 1778516	Sheridan, WY	40	38	For hire
50	Broken Link Energy LLCUSDOT 2514601	Gillette, WY	40	14	For hire
51	Maverick Oilfield Services LLCUSDOT 3798212	Douglas, WY	40	25	For hire
52	2g Trucking LLCUSDOT 4118737	Casper, WY	40	47	For hire
53	Redi Industrial Services LLCUSDOT 4353757	Lyman, WY	40	52	For hire
54	Bartlett Oilfield Service IncUSDOT 738001	Bairoil, WY	39	12	For hire
55	Hurricane Services 21 LLCUSDOT 3008653	Newcastle, WY	39	28	For hire
56	L and H Industrial IncUSDOT 520198	Gillette, WY	38	40	For hire
57	Black Gold Energy Service LLCUSDOT 3211488	Gillette, WY	38	46	For hire
58	Southern Petroleum Laboratories IncUSDOT 240804	Casper, WY	37	39	Private
59	Legend Services IncUSDOT 1261263	Rock Springs, WY	37	18	For hire
60	Cowboy State Trucking IncUSDOT 3099409	Kemmerer, WY	37	38	For hire
61	Envirotech Services LLCUSDOT 386366	Evanston, WY	36	28	For hire
62	Lower Valley Energy IncUSDOT 584425	Afton, WY	36	48	Private
63	Pluggin Along IncUSDOT 1765424	Gillette, WY	36	11	Private
64	Exero Well Integrity LLCUSDOT 3381499	Mills, WY	36	47	For hire
65	Legends Transportation LLCUSDOT 3910013	Laramie, WY	36	25	For hire
66	Lock-Tite Anchor Company IncorporatedUSDOT 2151952	Edgerton, WY	35	21	For hire
67	BT IncorporatedUSDOT 256261	Riverton, WY	34	36	For hire
68	Powder River Energy CorporationUSDOT 478756	Sundance, WY	34	34	Private
69	Melco IncUSDOT 1304165	Lysite, WY	34	18	Private
70	G Bar S Oilfield Services LLCUSDOT 3213020	Cheyenne, WY	34	15	For hire
71	Avail Valley Construction-Wy LLCUSDOT 3409854	Afton, WY	34	17	For hire
72	Black Hawk Crane LLCUSDOT 5366930	Gillette, WY	34	10	For hire
73	Fremont Beverages IncUSDOT 122836	Worland, WY	33	17	For hire
74	Jims Water Service IncUSDOT 139071	Gillette, WY	33	8	For hire
75	Mountain Construction CompanyUSDOT 875605	Lovell, WY	33	14	For hire
76	Haystacks IncUSDOT 1291812	Wamsutter, WY	33	8	For hire
77	McGarvin-Moberly Construction CompanyUSDOT 273024	Worland, WY	32	16	Private
78	STC Construction Company IncUSDOT 393561	Cheyenne, WY	32	10	Private
79	Wyoming Rents LLCUSDOT 843542	Casper, WY	32	20	Private
80	Broken Spoke Welding & Construction IncUSDOT 1697819	Eden, WY	32	4	For hire
81	TDS Collection Service IncUSDOT 312147	Torrington, WY	31	19	For hire
82	Dooley Oil IncorporatedUSDOT 723930	Laramie, WY	31	21	For hire
83	Wire Brothers IncUSDOT 749408	Rock Springs, WY	31	30	For hire
84	Mc Welding Service LLCUSDOT 4014804	Gillette, WY	31	42	Private
85	Falcon Construction LLCUSDOT 4077508	Gillette, WY	31	8	For hire
86	Oil Well Perforators IncUSDOT 101114	Casper, WY	30	25	Private
87	PC Transport IncUSDOT 191414	Casper, WY	30	24	For hire
88	Dooley Oil Transport IncUSDOT 307660	Laramie, WY	30	22	For hire
89	Tri County Telephone Association IncUSDOT 580289	Basin, WY	30	40	Private
90	Wood Wireline Service IncUSDOT 910471	Gillette, WY	30	42	Private
91	Wilderness Ventures LLCUSDOT 2870591	Jackson, WY	30	78	For hire
92	Hoskinson Contracting LLCUSDOT 4120457	Gillette, WY	30	15	Private
93	Great Plains Crew Change Company LLCUSDOT 4201124	Gillette, WY	30	52	For hire
94	Evans Construction CompanyUSDOT 320781	Jackson, WY	29	70	For hire
95	Ready Oilfield Service IncUSDOT 1461167	Rock Springs, WY	29	41	For hire
96	Jadeco IncUSDOT 1748111	Thermopolis, WY	29	19	Private
97	Rael Cattle Company LLCUSDOT 5616957	Cowley, WY	29	7	Private
98	Bidell Gas Compression Inc.USDOT 9625208	Gillette, WY	29	23	For hire
99	Northern Lights Energy Companies IncUSDOT 241967	Evansville, WY	28	17	Private
100	Black Rock Mine Service LLCUSDOT 2527337	Gillette, WY	28	36	For hire

Show all 100Show fewer

By county

Swipe the table sideways to see more columns.

County	Carriers	Power units	Drivers
Laramie County	725	2,190	2,089
Natrona County	711	3,900	3,470
Campbell County	699	2,993	2,791
Sheridan County	662	1,152	1,274
Fremont County	465	1,521	1,433
Sweetwater County	394	1,832	1,541
Park County	326	936	986
Converse County	281	871	734
Teton County	249	966	1,308
Lincoln County	239	706	647
Sublette County	230	778	652
Goshen County	211	496	455
Carbon County	210	588	468
Uinta County	201	932	924
Big Horn County	195	857	631
Albany County	186	623	743
Crook County	171	533	489
Johnson County	157	456	398
Platte County	153	333	347
Washakie County	134	1,142	1,358
Weston County	131	458	373
Niobrara County	62	140	125
Hot Springs County	53	255	201

Frequently asked questions

What is a USDOT number?: The U.S. Department of Transportation number identifies a company that operates commercial vehicles hauling cargo or passengers in interstate commerce, and in many states for trips within the state too.
What is a MC number?: An MC (motor carrier) number is the operating authority FMCSA grants to for-hire carriers that move regulated goods or passengers across state lines. Private carriers hauling their own goods do not need one.
What do the safety ratings mean?: FMCSA rates a carrier Satisfactory, Conditional or Unsatisfactory after an on-site compliance review. Most carriers have never had a review and are unrated, which does not mean they are unsafe.

Source: Federal Motor Carrier Safety Administration, Company Census File · Last updated 10/22/2026

Data sources

Company Census File (motor carriers)Federal Motor Carrier Safety Administration

Data as of 10/22/2026

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