LEASES · O-10-42219 · OIL · DISTRICT 08
Chalk
ReportingGTG Operating, LLC · Howard County · Howard Glasscock (Consolidated) field
Chalk is an RRC oil lease (O-10-42219) in Howard County operated by Gtg Operating, LLC, with 9 wells completed on it.
It has reported 93.9K barrels of oil since December 2011, last reporting volume in February 2026 (statewide data runs through April 2026).
The last 12 reported months total 3.73K barrels of oil, down 22% on the year before; the lease peaked at 1.01K barrels in August 2012.
3 operators have filed production on it, most recently Gtg Operating, LLC since May 2020.
- 93.9K
- bbl oil, all reported
- 0
- mcf gas incl. casinghead
- 3.73K
- bbl oil, last 12 reported
- -22%
- vs the 12 before
- 9
- wells completed on it
- 1.01K
- peak month, bbl (Aug 2012)
PDQ LEASE REPORTS · FIRST DEC 2011 · LAST VOLUME FEB 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 3,731 · prior 12 4,784(-22%)
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.
- Miranda Energy CorporationDec 2011 → Aug 2015 · 45 mo
- Shenandoah Resources LLCSep 2015 → Apr 2020 · 56 mo
- GTG Operating, LLCMay 2020 → Jul 2026 · 75 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
9
wells completed on the lease
- Producing
- 6
- Injection
- 2
- Shut IN
- 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.
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