LEASES · O-10-24399 · OIL · DISTRICT 08
Chalkley
ReportingOlsen Energy Inc. · Pecos County · Lehn-Apco, South (Ellen) field
Chalkley is an RRC oil lease (O-10-24399) in Pecos County operated by Olsen Energy Inc., with 5 wells completed on it.
It has reported 37K barrels of oil and 2.14K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 3.09K barrels of oil, down 18% on the year before; the lease peaked at 692 barrels in January 2017.
4 operators have filed production on it, most recently Olsen Energy Inc. since February 2016.
- 37K
- bbl oil, all reported
- 2.14K
- mcf gas incl. casinghead
- 3.09K
- bbl oil, last 12 reported
- -18%
- vs the 12 before
- 5
- wells completed on it
- 692
- peak month, bbl (Jan 2017)
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 3,094 · prior 12 3,781(-18%)
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 0 · prior 12 0
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.
- Pedco Resources CompanyJan 1993 → Jan 1995 · 25 mo
- MBR Resources, Inc.Feb 1995 → Mar 2006 · 134 mo
- Unit Petroleum CompanyApr 2006 → Jan 2016 · 118 mo
- Olsen Energy Inc.Feb 2016 → Jul 2026 · 126 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
5
wells completed on the lease
- NO Type on File
- 4
- 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.
Developers: this page as JSON is GET /v1/data/leases/tx/o-10-24399, documented in the API reference.