LEASES · O-3-23288 · OIL · DISTRICT 03
Castleman Unit
Magnolia Oil & Gas Operating LLC · Fayette County · Giddings (Austin Chalk-3) field
Castleman Unit is an RRC oil lease (O-3-23288) in Fayette County operated by Magnolia Oil & Gas Operating LLC, with one well completed on it.
It has reported 123K barrels of oil and 1.4M mcf of gas since July 1997, last reporting volume in July 2026 (statewide data runs through August 2026).
No volume was reported in the 12 months through August 2026; the last was in July 2026.
4 operators have filed production on it, most recently Magnolia Oil & Gas Operating LLC since August 2018.
- 123K
- bbl oil, all reported
- 1.4M
- mcf gas incl. casinghead
- 0
- bbl oil, 12 months through Aug 2026
- -100%
- vs the 12 before
- 1
- wells completed on it
- 7.69K
- peak month, bbl (Jul 1997)
PDQ LEASE REPORTS · FIRST JUL 1997 · LAST VOLUME JUL 2026 · STATEWIDE DATA THROUGH AUG 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
12 months through Aug 2026 0 · prior 12 1,508(-100%)
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.
12 months through Aug 2026 1,000 · prior 12 10,161(-90%)
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, with what it reported in them.
- Rosewood Resources, Inc.Jul 1997 → Apr 2000 · 34 mo62.7K bbl oil · 652K mcf gas
- Emerald Operating Company, Inc.May 2000 → Aug 2008 · 100 mo38.5K bbl oil · 459K mcf gas
- Enervest Operating, L.L.C.Sep 2008 → Jul 2018 · 119 mo13.5K bbl oil · 205K mcf gas
- Magnolia Oil & Gas Operating LLCAug 2018 → Nov 2026 · 100 mo8.26K bbl oil · 79.3K mcf gas
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
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 Aug 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-3-23288, documented in the API reference.