Petrora

LEASES · O-11-61559 · OIL · DISTRICT 8A

North Riley Unit

Reporting

Bce-Mach III LLC · Gaines County · Riley, North field

North Riley Unit is an RRC oil lease (O-11-61559) in Gaines County operated by Bce-Mach Iii LLC, with 404 wells completed on it.

It has reported 27.3M barrels of oil and 15.7M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 273K barrels of oil, down 15% on the year before; the lease peaked at 169K barrels in March 1993.

5 operators have filed production on it, most recently Bce-Mach Iii LLC since September 2025.

27.3M
bbl oil, all reported
15.7M
mcf gas incl. casinghead
273K
bbl oil, last 12 reported
-15%
vs the 12 before
404
wells completed on it
169K
peak month, bbl (Mar 1993)

PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME APR 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 273,391 · prior 12 321,819(-15%)

050K100K2017201820192020202120222023202420252026

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 217,560 · prior 12 242,248(-10%)

020K40K60K2017201820192020202120222023202420252026

Decline curve

A MODEL FITTED TO THE REPORTS, NOT A REPORT

An Arps hyperbolic curve fitted to the 33 reporting months of oil since the peak in Aug 2023. The dashed line below is that curve, drawn over the months it was fitted to and then 24 months past the last report; where it parts from the columns is where the model stops describing the lease. It describes the trend of past reports. It does not know about recompletions, shut-ins, or new wells, and it is shown only when the lease reported within the last year and the curve explains most of the history.

31%
first-year decline from the peak (nominal Di 56%)
2.0
b factor (hyperbolic)
0.76
fit R²
5.13M
bbl remaining on the curve, to 1 per month

Oil, barrels reported months since the peak, with the fitted curve and its projection

Last 12 months 273,391 · prior 12 321,819(-15%)

050K100K20242025202620272028

Fitted hyperbolic curve from the Aug 2023 peak, dashed 24 months past the last report

Projected monthOct 2026Apr 2027Oct 2027Apr 2028
On the curve, bbl per month19,51718,41717,48516,681

Quoting a projected figure as if it were reported would be wrong; the reported figures are the ones in the charts and the table view. How production is reported →

Who reported it

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

  1. Union Oil Company of CaliforniaJan 1993 → May 2000 · 89 mo
  2. Pure Resources, L.P.Jun 2000 → Mar 2006 · 70 mo
  3. Chevron Midcontinent, L.P.Apr 2006 → Sep 2017 · 138 mo
  4. Sabinal Energy Operating, LLCOct 2017 → Aug 2025 · 95 mo
  5. Bce-Mach III LLCSep 2025 → Jul 2026 · 11 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

404

wells completed on the lease

Producing
118
Plugged
83
NO Type on File
80
Shut IN
65
Injection
56

Operates them now

Bce-Mach III LLC
334
Union Oil Company of California
21
Amoco Production Company
11
National Coop Refinery Assoc
6
Hunt Wm. Herbert Trust Est.
5

Newest permits

All 404 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-11-61559, documented in the API reference.