LEASES · O-10-29304 · OIL · DISTRICT 08
Grand Slam
ReportingPioneer Natural Res. USA, Inc. · Glasscock County · Dewey Lake, S. (Strawn) field
Grand Slam is an RRC oil lease (O-10-29304) in Glasscock County operated by Pioneer Natural Res. USA, Inc., with 2 wells completed on it.
It has reported 97.8K barrels of oil and 919K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 876 barrels of oil, down 3% on the year before; the lease peaked at 1.01K barrels in January 1993.
8 operators have filed production on it, most recently Pioneer Natural Res. USA, Inc. since February 2021.
- 97.8K
- bbl oil, all reported
- 919K
- mcf gas incl. casinghead
- 876
- bbl oil, last 12 reported
- -3%
- vs the 12 before
- 2
- wells completed on it
- 1.01K
- peak month, bbl (Jan 1993)
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 876 · prior 12 904(-3%)
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 9,795 · prior 12 8,972(+9%)
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.
- Badger Oil CorporationJan 1993 → Sep 1995 · 33 mo
- Permian Resources, Inc.Oct 1995 → Apr 2004 · 103 mo
- Chesapeake Operating, Inc.May 2004 → Mar 2010 · 71 mo
- Three Rivers Operating Co LLCApr 2010 → Jul 2012 · 28 mo
- COG Operating LLCAug 2012 → Nov 2016 · 52 mo
- DE Operating LLCDec 2016 → Apr 2017 · 5 mo
- Parsley Energy Operations, LLCMay 2017 → Jan 2021 · 45 mo
- Pioneer Natural Res. USA, Inc.Feb 2021 → Jul 2026 · 66 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- Plugged
- 1
- NO Type on File
- 1
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-10-29304, documented in the API reference.