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LEASES · O-10-37794 · OIL · DISTRICT 08

Sand Hills Tubb Unit

No volume since Jul 2020

Formentera Operations LLC · Crane County · Sand Hills (Clear Fork 4070) field

Sand Hills Tubb Unit is an RRC oil lease (O-10-37794) in Crane County operated by Formentera Operations LLC, with one well completed on it.

It has reported 10.6K barrels of oil and 40.1K mcf of gas since July 2006, last reporting volume in July 2020 (statewide data runs through April 2026).

No volume was reported in the 12 months through April 2026; the last was in July 2020.

9 operators have filed production on it, most recently Formentera Operations LLC since November 2023.

10.6K
bbl oil, all reported
40.1K
mcf gas incl. casinghead
0
bbl oil, 12 months through Apr 2026
—
vs the 12 before
1
wells completed on it
163
peak month, bbl (Dec 2009)

PDQ LEASE REPORTS · FIRST JUL 2006 · LAST VOLUME JUL 2020 · 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.

12 months through Apr 2026 0 · prior 12 0

020402017201820192020202120222023202420252026

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 Apr 2026 0 · prior 12 0

05001K20072008200920102011201220132014201520162017201820192020202120222023202420252026

Who reported it

Each run of months one operator filed the production report, oldest first.

  1. Encore Operating, L.P.Jul 2006 → Aug 2009 · 38 mo
  2. Encore Energy Partners Oper LLCSep 2009 → Mar 2012 · 31 mo
  3. Vanguard Permian, LLCApr 2012 → Apr 2015 · 37 mo
  4. Vanguard Operating, LLCMay 2015 → Aug 2019 · 52 mo
  5. Grizzly OP of Delaware, LLCSep 2019 → Jan 2021 · 17 mo
  6. Contango Resources, Inc.Feb 2021 → Dec 2021 · 11 mo
  7. Contango Resources, LLCJan 2022 → Jun 2022 · 6 mo
  8. Slant Operating, LLCJul 2022 → Oct 2023 · 16 mo
  9. Formentera Operations LLCNov 2023 → Jul 2026 · 33 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

Plugged
1

Operates them now

Formentera Operations LLC
1

Newest permits

All 1 wells, searchable →

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-10-37794, documented in the API reference.