LEASES · O-2-9696 · OIL · DISTRICT 02

Colleen Unit B

Reporting

Burlington Resources O & G Co LP · Karnes County · Eagleville (Eagle Ford-2) field

Colleen Unit B is an RRC oil lease (O-2-9696) in Karnes County operated by Burlington Resources O & G CO LP, with 5 wells completed on it.

It has reported 1.67M barrels of oil and 3.27M mcf of gas since July 2011, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 120K barrels of oil, down 85% on the year before; the lease peaked at 155K barrels in June 2024.

1.67M
bbl oil, all reported
3.27M
mcf gas incl. casinghead
120K
bbl oil, last 12 reported
-85%
vs the 12 before
5
wells completed on it
155K
peak month, bbl (Jun 2024)

PDQ LEASE REPORTS · FIRST JUL 2011 · 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 120,035 · prior 12 795,436(-85%)

0100K200K2017201820192020202120222023202420252026

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 324,818 · prior 12 1,516,992(-79%)

0100K200K300K2017201820192020202120222023202420252026

Decline curve

A MODEL FITTED TO THE REPORTS, NOT A REPORT

An Arps hyperbolic curve fitted to the 23 reporting months of oil since the peak in Jun 2024. 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.

89%
first-year decline from the peak (nominal Di 362%)
0.4
b factor (hyperbolic)
0.92
fit R²
115K
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 120,035

0100K200K2025202620272028

Fitted hyperbolic curve from the Jun 2024 peak, dashed 24 months past the last report

Projected monthOct 2026Apr 2027Oct 2027Apr 2028
On the curve, bbl per month3,6592,4951,7911,336

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. Burlington Resources O & G Co LPJul 2011 → Jul 2026 · 181 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

5

wells completed on the lease

Producing
3
Shut IN
2

Newest permits

All 5 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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