LEASES · O-1-10143 · OIL · DISTRICT 01
Oldjamie Oil
ReportingCalk, Roger D. · Atascosa County · Somerset field
Oldjamie Oil is an RRC oil lease (O-1-10143) in Atascosa County operated by Calk, Roger D., with 6 wells completed on it.
It has reported 12.6K barrels of oil and 109 mcf of gas since January 1993, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 192 barrels of oil, up 42% on the year before; the lease peaked at 123 barrels in October 2006.
5 operators have filed production on it, most recently Calk, Roger D. since June 2009.
- 12.6K
- bbl oil, all reported
- 109
- mcf gas incl. casinghead
- 192
- bbl oil, last 12 reported
- +42%
- vs the 12 before
- 6
- wells completed on it
- 123
- peak month, bbl (Oct 2006)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME MAR 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 192 · prior 12 135(+42%)
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.
- Patterson Oil & Gas CompanyJan 1993 → Sep 1996 · 45 mo
- Property Development Group, Inc.Oct 1996 → May 2004 · 92 mo
- Horizon Ridge Oil CompanyJun 2004 → Feb 2008 · 45 mo
- Sto Operating CompanyMar 2008 → May 2009 · 15 mo
- Calk, Roger D.Jun 2009 → Jul 2026 · 206 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
6
wells completed on the lease
- Producing
- 6
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-1-10143, documented in the API reference.