FMCSA Carrier Profile
SHALE OILFIELD SERVICES LLC
Owner / Officer: Robert Ayala
Active
No Safety Rating
Authority Active
Active 8 yrs, 8 mo
Authority
Active
Common carrier
Insurance
On File
$1,000,000 BIPD
Safety
Not Rated
3rd pct · 26 inspections on record
✓ No risk flags found on authority or insurance records
Vetting Notes
SHALE OILFIELD SERVICES LLC is an active FMCSA-registered motor carrier based in Williston, North Dakota, operating under DOT 2500809. No high-severity flags were found on authority or insurance records. Across 26 FMCSA inspections on record, this carrier shows 56.3% vehicle OOS and 7.7% driver OOS. Authority and safety history are clean as of this page's last update.
FMCSA Registration
DOT Number
2500809
Operating Status
Active
Safety Rating
Not Rated
MCS-150 Filed
December 17, 2025
FMCSA Registration
April 29, 2014
Authority Granted
November 28, 2017
Annual Mileage
517,023 mi (2025)
Contact Information
Address
5216 22nd Ave W, Williston, ND 58801
Phone
Email
Owner / Officer
Robert Ayala
Operating Authority
MC055557
Common Carrier
Insurance on File
THE TRAVELERS INDEMNITY CO. OF CONNECTICUT
BI&PD · $1,000,000 · Policy A3076370
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Safety Percentile
3rd percentile
vs. peer carriers
✓ Below FMCSA alert threshold (65th pct) · lower percentile = fewer violations than peers · source: FMCSA SMS
Safety & Inspection Summary
Total Inspections
26
Driver Inspections
13
Vehicle Inspections
16
Total OOS Orders
10
Violations by Category
Vehicle Maintenance46
Unsafe Driving1
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate7.7% · national avg 5.5%
⚠ Above national average (2.2pp higher)
Vehicle OOS Rate56.3% · national avg 20.7%
⚠ Above national average (35.5pp higher)
Inspection Trend by Year
2026
2025
2024
Inspection Records (26)
| Date | State | Level | Vehicle | Viol. | Status |
|---|---|---|---|---|---|
| March 30, 2026 | TX | Level II — Walk-Around | PTRB · 1XPWD49X7CD134781 | 1 | Passed |
| March 26, 2024 | ND | Level II — Walk-Around | — | 2 | 1 OOS |
| June 26, 2024 | MT | Level III — Driver Only | KENWORTH · 1XKZD49X4JJ217988 | 0 | Clean |
| April 26, 2024 | ND | Level I — Full | KENWORTH · 1XKZP4TX6KJ243235 | 4 | 1 OOS |
| August 20, 2024 | TX | Level II — Walk-Around | FRHT · 1FUPYCYB0GH275449 | 0 | Clean |
| August 20, 2024 | ND | Level III — Driver Only | KENWORTH · 1XKZD40X2RJ376095 | 0 | Clean |
| March 19, 2024 | TX | Level I — Full | — | 7 | 2 OOS |
| April 18, 2026 | ND | Level I — Full | KENWORTH · 1XKZD49X4JJ217988 | 11 | 1 OOS |
| September 17, 2024 | ND | Level I — Full | KENWORTH · 1XKZP4EX6RJ379694 | 3 | 1 OOS |
| January 17, 2025 | ND | Level III — Driver Only | KENWORTH · 1XKZD40X2RJ379143 | 0 | Clean |
| August 14, 2024 | ND | Level V — Vehicle Only | KENWORTH · 1NKZX7TX5FJ459773 | 2 | 1 OOS |
| August 14, 2024 | ND | Level V — Vehicle Only | KENWORTH · 1NKDX4TX4FJ440740 | 2 | Passed |
Showing 12 of 26 inspection records
Authority History
| Date | Status | Type |
|---|---|---|
| November 21, 2018 | INVOLUNTARY REVOCATION | Common |
| November 28, 2017 | GRANTED | Common Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| BI&PD Primary/Excess | Cancellation Pending |
Other Carriers in Williston, ND
Data sourced from FMCSA MCMIS via Socrata. Last updated: August 7, 2026.
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