Petrora

LEASES · O-10-15859 · OIL · DISTRICT 08

Dora Roberts Ranch Unit

Reporting

Continental Resources, Inc. · Midland County · War-San (Ellenburger) field

Dora Roberts Ranch Unit is an RRC oil lease (O-10-15859) in Midland County operated by Continental Resources, Inc., with 12 wells completed on it.

It has reported 1.03M barrels of oil and 3.83M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 6.56K barrels of oil, up 138% on the year before; the lease peaked at 7.75K barrels in August 1993.

3 operators have filed production on it, most recently Continental Resources, Inc. since November 2023.

1.03M
bbl oil, all reported
3.83M
mcf gas incl. casinghead
6.56K
bbl oil, last 12 reported
+138%
vs the 12 before
12
wells completed on it
7.75K
peak month, bbl (Aug 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 6,558 · prior 12 2,752(+138%)

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 5,394 · prior 12 2,988(+81%)

05K10K2017201820192020202120222023202420252026

Decline curve

A MODEL FITTED TO THE REPORTS, NOT A REPORT

An Arps exponential curve fitted to the 105 reporting months of oil since the peak in Aug 2016. 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.

22%
first-year decline from the peak (nominal Di 25%)
0.0
b factor (exponential)
0.72
fit R²
16.4K
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 6,558 · prior 12 2,752(+138%)

02K4K201720182019202020212022202320242025202620272028

Fitted exponential curve from the Aug 2016 peak, dashed 24 months past the last report

Projected monthOct 2026Apr 2027Oct 2027Apr 2028
On the curve, bbl per month299264234207

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. OXY USA Inc.Jan 1993 → Dec 2000 · 96 mo
  2. OXY USA WTP LPJan 2001 → Oct 2023 · 274 mo
  3. Continental Resources, Inc.Nov 2023 → Jul 2026 · 33 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

12

wells completed on the lease

Plugged
5
Shut IN
4
Producing
3

Operates them now

Continental Resources Inc.
5
Continental Resources, Inc.
4
OXY USA Inc.
3

Newest permits

All 12 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.

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