LEASES · O-10-10116 · OIL · DISTRICT 08
Chalk, Mary
No volume since Nov 2011Legacy Reserves Operating LP · Howard County · Howard Glasscock field
Chalk, Mary is an RRC oil lease (O-10-10116) in Howard County operated by Legacy Reserves Operating LP, with 7 wells completed on it.
It has reported 63.4K barrels of oil and 21 mcf of gas since January 1993, last reporting volume in November 2011 (statewide data runs through April 2026).
The last 12 reported months total 172 barrels of oil, down 89% on the year before; the lease peaked at 531 barrels in March 1998.
4 operators have filed production on it, most recently Legacy Reserves Operating LP since April 2006.
- 63.4K
- bbl oil, all reported
- 21
- mcf gas incl. casinghead
- 172
- bbl oil, last 12 reported
- -89%
- vs the 12 before
- 7
- wells completed on it
- 531
- peak month, bbl (Mar 1998)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME NOV 2011 · 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 172 · prior 12 1,524(-89%)
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
Who reported it
Each run of months one operator filed the production report, oldest first.
- Guthrie, A. K. Operating Co.Jan 1993 → Mar 1996 · 39 mo
- Marathon Oil CompanyApr 1996 → Oct 1999 · 43 mo
- Brothers Production Company Inc.Nov 1999 → Mar 2006 · 77 mo
- Legacy Reserves Operating LPApr 2006 → Sep 2012 · 78 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
7
wells completed on the lease
- Not on Schedule
- 5
- Plugged
- 2
Operates them now
Newest permits
- 22781150 #12Oct 5, 1981
- — #10—
- — #11—
- — #3—
- — #4—
- — #5—
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-10-10116, documented in the API reference.