T-C OIL COMPANY, LLC
Reported value by year
What T-C OIL COMPANY, LLC's leases reported, valued at the published monthly benchmark and summed by year. This is the state's volume times a published price — not what the company was paid, which no free source publishes.
Inspections and violations
What the Railroad Commission's field inspectors recorded at this operator's facilities. An inspection count tracks how much this operator runs in Texas; the rate beside it is what the inspectors found.
| Rule | What the Commission cited it for | Violations |
|---|---|---|
| SWR 3.8(d)(1) | Unpermitted Disposal of Oil and Gas Wastes | 1 |
| SWR 3.91(d)(1) | Remediation of Soil | 1 |
What the Commission did
- Notice of Violation 2
From the Commission's inspection and violation files, covering Aug 1 2015 to Aug 7 2026. The two are separate files with no key between them, so the violations here are not a subset of the 3 inspections that found this operator out of compliance — they are counted from their own file.
Commission dockets
Cases the Railroad Commission opened naming this operator. Most dockets are applications — commonly for an exception to the statewide spacing rule — and a small number are compliance orders.
| Type | What the Commission's remarks call it | Dockets |
|---|---|---|
| A37 | Rule 37 spacing exception | 14 |
| AFR | no published meaning for this code | 1 |
From the Commission's docket file published 2025-02-05. It is the only copy on the Commission's link, so nothing filed after that date appears here. The dates shown are the earliest and latest the record carries — 1 Mar 2010 to 4 Apr 2024. The file holds eight date fields per docket and the Commission publishes no key to which is which, so none is named here.
Leases
Every lease is a page of its own: the monthly volumes the state published, multiplied by the monthly price. Value is lifetime, from Jan 1993.
50 of 270 leases
| WLP02/8579 | Oil lease | $1.11 bn |
| T-C OIL CO.- O'CONNOR02/2554 | Oil lease | $431.5 M |
| OCONNOR, DENNIS, ETAL -L-02/2845 | Oil lease | $382.6 M |
| RIVER RANCH -A-/WILLIAMS STATE U02/9301 | Oil lease | $149.2 M |
| OCONNOR -D-02/2834 | Oil lease | $113.7 M |
| O'CONNOR -H-02/9321 | Oil lease | $74.6 M |
| RIVER RANCH -B- STATE UNIT02/9357 | Oil lease | $58.8 M |
| O'CONNOR02/8367 | Oil lease | $44.9 M |
| CLAY PASTURE -B- STATE UNIT02/9381 | Oil lease | $40.7 M |
| MELLON OIL UNIT02/2192 | Oil lease | $33.7 M |
| O'CONNOR02/11800 | Oil lease | $25.1 M |
| WILLOW CREEK -B-02/9482 | Oil lease | $23.2 M |
| DUKE RANCH -T-02/212604 | Gas well | $22.4 M |
| OCONNOR, DENNIS, ET AL -N-02/3598 | Oil lease | $16.9 M |
| O'CONNOR02/7505 | Oil lease | $16.1 M |
| DUKE RANCH -M-02/214431 | Gas well | $15.5 M |
| CLAY PASTURE -B- STATE UNIT02/9332 | Oil lease | $15.3 M |
| T-C OIL CO.-O'CONNER02/189304 | Gas well | $15.3 M |
| O'CONNOR, M. E.02/5130 | Oil lease | $14.8 M |
| DUKE RANCH -J-02/216543 | Gas well | $14.8 M |
| CAVASSO CREEK-A-04/226035 | Gas well | $14.1 M |
| DUKE RANCH -F-02/212605 | Gas well | $14.1 M |
| O'CONNOR, DENNIS ET AL -N-02/8738 | Oil lease | $14.0 M |
| BRAMAN -D-02/11520 | Oil lease | $13.6 M |
| BOYD NO. 1 OIL UNIT02/9064 | Oil lease | $11.5 M |
| OCONNOR, DENNIS ETAL -D-02/4401 | Oil lease | $11.1 M |
| RICHARD M. LUCAS ET AL -A-02/261870 | Gas well | $11.1 M |
| MALONE -C-02/245438 | Gas well | $10.7 M |
| O'CONNOR, T-C OIL CO.02/206761 | Gas well | $10.7 M |
| O'CONNOR, DENNIS ET AL -L-02/198753 | Gas well | $9.5 M |
| MEOC-MELLON-STATE UNIT02/11756 | Oil lease | $9.1 M |
| OCONNOR -H-02/2571 | Oil lease | $9.1 M |
| O'CONNOR02/10331 | Oil lease | $8.9 M |
| O'CONNOR, DENNIS ET AL -N-02/8931 | Oil lease | $8.8 M |
| T-C OIL CO. -O'CONNOR02/7326 | Oil lease | $8.5 M |
| O'CONNOR, DENNIS ET AL -L-02/188176 | Gas well | $8.2 M |
| MALONE -D-02/253345 | Gas well | $8.0 M |
| O'CONNOR, DENNIS ET AL -A-02/8133 | Oil lease | $7.9 M |
| CLAY PASTURE -A-02/236296 | Gas well | $7.7 M |
| O'CONNER -D-02/5957 | Oil lease | $7.7 M |
| DENNIS O'CONNOR ET AL -L-02/187120 | Gas well | $7.6 M |
| OCONNER, M. E.02/6867 | Oil lease | $7.6 M |
| BRAMAN -A-02/286087 | Gas well | $7.6 M |
| MEOC-MELLON-STATE UNIT02/292773 | Gas well | $7.2 M |
| DUKE RANCH -S-02/220279 | Gas well | $6.9 M |
| CLAY PASTURE -B- STATE UNIT02/240610 | Gas well | $6.7 M |
| DUKE RANCH -K-02/220799 | Gas well | $6.4 M |
| DUKE RANCH -V-02/214365 | Gas well | $6.4 M |
| DUKE RANCH -10-02/220567 | Gas well | $6.4 M |
| CAVASSO CREEK -A-04/224972 | Gas well | $6.3 M |
Pipeline systems
The named networks T-C OIL COMPANY, LLC operates. One physical pipeline is usually filed as hundreds of segments, so a system — not a segment — is the unit worth reading.
| System | Miles | Segments | Counties |
|---|---|---|---|
| QUINTANA/LAMBERT SYSTEM | 7.6 | 7 | 1 |