CHAPARRAL ENERGY, L.L.C.
Reported value by year
What CHAPARRAL ENERGY, L.L.C.'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 | 37 |
| SWR 3.91(d)(1) | Remediation of Soil | 31 |
| SWR 3.3(3) | Battery Sign; Commingling Permit | 29 |
| SWR 3.3(2) | Well Sign | 13 |
| SWR 3.3(1) | Entrance Sign | 12 |
The five commonest of 17 rules cited against this operator.
What the Commission did
- Notice of Violation 149
- Referred to Austin Field Ops for possible legal enforcement 4
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 122 inspections that found this operator out of compliance — they are counted from their own file. 9 of the violations were still uncorrected when the inspector returned.
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 | 54 |
| GFC | no published meaning for this code | 7 |
| R50 | no published meaning for this code | 7 |
| 7A8 | Rule 37 or 38 exception | 6 |
| PPP | Compliance order | 6 |
The five commonest of 17 types this operator carries.
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 — 16 Dec 2002 to 11 Sep 2019. 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 173 leases
| ALEXANDER 46710/197398 | Gas well | $17.0 M |
| BOWER02/177634 | Gas well | $12.1 M |
| STATE TRACT 17303/176582 | Gas well | $9.5 M |
| STATE TRACT "901-S"04/8915 | Oil lease | $6.1 M |
| STATE TRACT 16003/175599 | Gas well | $5.4 M |
| STATE TRACT 47004/12491 | Oil lease | $5.3 M |
| GRANBERRY03/23252 | Oil lease | $4.5 M |
| STATE TRACT 17303/197833 | Gas well | $3.9 M |
| STATE TRACT 426-44104/12782 | Gas well | $3.7 M |
| STATE TRACT 47004/12545 | Oil lease | $3.5 M |
| WOLF, W. F.02/32471 | Gas well | $3.5 M |
| COX UNIT 103/17133 | Oil lease | $3.3 M |
| CAMPBELL02/208652 | Gas well | $3.3 M |
| WHELLER, BERT03/21818 | Oil lease | $3.0 M |
| RUTH MARSHALL, ET AL GAS UNIT03/23959 | Oil lease | $3.0 M |
| CLEMENTS, L. C.10/6403 | Oil lease | $2.6 M |
| STATE TRACT 45704/151303 | Gas well | $2.4 M |
| TARBOX, W. H.10/2442 | Oil lease | $2.4 M |
| STATE 436 GAS UNIT04/147700 | Gas well | $2.4 M |
| ERP, WILL ESTATE02/87955 | Gas well | $2.4 M |
| SKAGGS, E. L. "B"02/109064 | Gas well | $2.4 M |
| BILLO UNIT02/161437 | Gas well | $2.4 M |
| TRUITT & GRAVIER A/C #103/8182 | Oil lease | $2.2 M |
| CONNELL ESTATE "7"8A/63652 | Oil lease | $2.2 M |
| MURPHY UNIT03/17581 | Oil lease | $2.2 M |
| STATE TRACT 44004/153325 | Gas well | $2.1 M |
| CARTER-JANOTA02/8658 | Oil lease | $2.1 M |
| HOUSTON FARMS DEVELOPMENT CO.03/5608 | Gas well | $2.0 M |
| CAMPBELL02/207760 | Gas well | $2.0 M |
| BOWER02/179324 | Gas well | $2.0 M |
| CONGER08/21088 | Oil lease | $1.9 M |
| HEIRS, WELDER02/157847 | Gas well | $1.9 M |
| STATE TRACT 17103/81738 | Gas well | $1.9 M |
| J. E. CHAPMAN ET AL03/171405 | Gas well | $1.8 M |
| STATE OF TEXAS -C-08/7361 | Oil lease | $1.8 M |
| CUELLAR, LEON C.02/187912 | Gas well | $1.8 M |
| GRABEL10/7450 | Oil lease | $1.6 M |
| HOUSTON FARMS DEVELOPMENT CO.03/5607 | Gas well | $1.6 M |
| SCHAEFER, E.C.02/5033 | Oil lease | $1.5 M |
| STATE TRACT 1204/142964 | Gas well | $1.5 M |
| HAINES10/6992 | Oil lease | $1.4 M |
| SMITH, ALMA02/190235 | Gas well | $1.2 M |
| MORTON8A/60035 | Oil lease | $1.2 M |
| BRITT10/6516 | Oil lease | $1.2 M |
| MESSEC, CARL06/10027 | Oil lease | $1.2 M |
| HACIENDA STATE08/38181 | Oil lease | $1.1 M |
| VANCE02/165390 | Gas well | $1.1 M |
| BRAMAN -C-03/197483 | Gas well | $1.1 M |
| HACIENDA STATE08/217726 | Gas well | $1.0 M |
| CHRISTOPHER03/21142 | Oil lease | $1.0 M |
Pipeline systems
The named networks CHAPARRAL ENERGY, L.L.C. 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 |
|---|---|---|---|
| PLEASANT BAYOU | 81 | 77 | 12 |
| TEXOK CO2 PIPELINE | 10 | 1 | 1 |
| MATAGORDA BAY GGS | 3.1 | 1 | 1 |
| MATAGORDA BAY GGS | 2.7 | 1 | 1 |
| SAN LEON SALES | 2.1 | 2 | 1 |
| MATAGORDA BAY GGS | 1.8 | 1 | 1 |
| MATAGORDA BAY GGS | 1.6 | 2 | 1 |
| MATAGORDA BAY GGS | 1.5 | 1 | 1 |
| MATAGORDA BAY GGS | 0.6 | 1 | 1 |
| MATAGORDA BAY GGS | 0.5 | 1 | 1 |
| MATAGORDA BAY GGS | 0.1 | 1 | 1 |
| MATAGORDA BAY GGS | 0.0 | 1 | 1 |