LEASES · O-9-18237 · OIL · DISTRICT 7C

Sallye

Reporting

COG Operating LLC · Upton County · Spraberry (Trend Area) field

Sallye is an RRC oil lease (O-9-18237) in Upton County operated by Cog Operating LLC, with 4 wells completed on it.

It has reported 145K barrels of oil and 601K mcf of gas since May 2013, last reporting volume in October 2025 (statewide data runs through April 2026).

No volume was reported in the last 12 months; the last was in October 2025.

4 operators have filed production on it, most recently Cog Operating LLC since March 2017.

145K
bbl oil, all reported
601K
mcf gas incl. casinghead
0
bbl oil, last 12 reported
—
vs the 12 before
4
wells completed on it
6.43K
peak month, bbl (Feb 2015)

PDQ LEASE REPORTS · FIRST MAY 2013 · LAST VOLUME OCT 2025 · 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 0 · prior 12 0

02K4K2017201820192020202120222023202420252026

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 167 · prior 12 0

010K20K30K2017201820192020202120222023202420252026

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.

  1. Summit Petroleum LLCMay 2013 → Nov 2014 · 19 mo
  2. True Oil Company LLCDec 2014 → Mar 2016 · 16 mo
  3. Summit Petroleum LLCApr 2016 → Feb 2017 · 11 mo
  4. COG Operating LLCMar 2017 → Jul 2026 · 113 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

4

wells completed on the lease

Shut IN
3
Plugged
1

Operates them now

Newest permits

All 4 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-9-18237, documented in the API reference.