LEASES · O-8-8712 · OIL · DISTRICT 7B
Lake Trammel Unit
ReportingGrayrock Energy II, LLC · Nolan County · Lake Trammel, W. (Canyon) field
Lake Trammel Unit is an RRC oil lease (O-8-8712) in Nolan County operated by Grayrock Energy II, LLC, with 203 wells completed on it.
It has reported 3.85M barrels of oil and 2.09M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 76.2K barrels of oil, down 7% on the year before; the lease peaked at 28.1K barrels in October 2014.
8 operators have filed production on it, most recently Grayrock Energy II, LLC since January 2024.
- 3.85M
- bbl oil, all reported
- 2.09M
- mcf gas incl. casinghead
- 76.2K
- bbl oil, last 12 reported
- -7%
- vs the 12 before
- 203
- wells completed on it
- 28.1K
- peak month, bbl (Oct 2014)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
Last 12 months 76,226 · prior 12 81,636(-7%)
Gas by month
Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.
Last 12 months 16,928 · prior 12 34,078(-50%)
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of oil reports follow one decline closely enough to project (R² of 0.7 or better over at least a year since the peak). This lease's recent history does not, so a projection would be a guess dressed as a number.
Who reported it
Each run of months one operator filed the production report, oldest first.
- Eldorado Operating Co.Jan 1993 → Oct 1995 · 34 mo
- Brothers Operating Company Inc.Nov 1995 → Apr 2003 · 90 mo
- Shenandoah Petroleum CorporationMay 2003 → Jan 2004 · 9 mo
- L.C.S. Production CompanyFeb 2004 → Apr 2009 · 63 mo
- Plantation Operating, LLCMay 2009 → Nov 2011 · 31 mo
- Merit Energy CompanyDec 2011 → May 2017 · 66 mo
- Rover Petroleum Operating, LLCJun 2017 → Dec 2023 · 79 mo
- Grayrock Energy II, LLCJan 2024 → Jul 2026 · 31 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
203
wells completed on the lease
- Shut IN
- 70
- Producing
- 44
- Plugged
- 37
- NO Type on File
- 27
- Injection
- 24
Operates them now
About this data
Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
Developers: this page as JSON is GET /v1/data/leases/tx/o-8-8712, documented in the API reference.