LEASES · O-13-19475 · OIL · DISTRICT 09
Bulkley
ReportingTatanka Operating, LLC · Cooke County · Philpick (6450) field
Bulkley is an RRC oil lease (O-13-19475) in Cooke County operated by Tatanka Operating, LLC, with one well completed on it.
It has reported 17.9K barrels of oil and 21 mcf of gas since January 1993, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 360 barrels of oil, down 20% on the year before; the lease peaked at 184 barrels in November 2019.
5 operators have filed production on it, most recently Tatanka Operating, LLC since October 2023.
- 17.9K
- bbl oil, all reported
- 21
- mcf gas incl. casinghead
- 360
- bbl oil, last 12 reported
- -20%
- vs the 12 before
- 1
- wells completed on it
- 184
- peak month, bbl (Nov 2019)
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 360 · prior 12 448(-20%)
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.
- Brammer Supply, Inc.Jan 1993 → Oct 2001 · 106 mo
- Hep Oil Company, Ltd.Nov 2001 → Jun 2005 · 44 mo
- D-S-B Properties, Inc.Jul 2005 → Nov 2010 · 65 mo
- Atoka Operating, Inc.Dec 2010 → Sep 2023 · 154 mo
- Tatanka Operating, LLCOct 2023 → Jul 2026 · 34 mo
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 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-13-19475, documented in the API reference.