Cowden -D-

Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.

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.

An Arps hyperbolic curve fitted to the 13 reporting months of oil since the peak in Oct 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.

80%

first-year decline from the peak (nominal D_i 366%)

0.9

b factor (hyperbolic)

0.80

fit R²

1.23K

bbl remaining on the curve, to 1 per month

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. Schlachter, David A.Jan 1993 → Mar 1996 · 39 mo
2. Naumann Oil & Gas, Inc.Apr 1996 → Jul 1997 · 16 mo
3. Petrogulf, CorporationAug 1997 → May 2007 · 118 mo
4. Petrogulf CorporationJun 2007 → Apr 2009 · 23 mo
5. Prosper Oil & Gas,inc.May 2009 → Aug 2010 · 16 mo
6. Sojourner Drilling CorporationSep 2010 → Oct 2011 · 14 mo
7. RMR Operating, LLCNov 2011 → Jul 2026 · 177 mo

All 10 wells, searchable →