OBREGON B

Oil · District 01 · Lease #3825

Operator: STAFFA, DOTTIE R.

Fields: DUNLAP

Cum Oil

16k BBL

Cum Gas

220 MCF

casinghead

Wells

11

Production

1993-01 — 2026-04

Peak Month

2001-10

Production History

Cum Oil: 16,036 BBL Cum Gas: 220 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

139 BBL/mo

Di (annual)

12.9%

b-factor

0.3

EUR

16,874 BBL

R-squared

0.519

type

hyperbolic

Operator History (from monthly production reports)

2016-03 — 2026-07 LULING WELL SERVICE 125 mo
2014-01 — 2016-02 DIANA & PAUL HAASS, LLC 26 mo
2001-08 — 2013-12 CHESSHER, OTTO DRILLING COMPANY 149 mo
1993-03 — 2001-07 STAFFA, DOTTIE R. 101 mo
1993-01 — 1993-02 SCULLY AND SMITH OIL CORPORATION 2 mo

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11LULING WELL SERVICE12,5001990-11-05
5LULING WELL SERVICE12,5001990-11-05
10LULING WELL SERVICE12,5001990-10-03
4LULING WELL SERVICE12,5001990-10-03
7LULING WELL SERVICE12,8001980-03-04
A 2LULING WELL SERVICE12,8001980-03-04
6LULING WELL SERVICE12,8001980-02-29
A 1LULING WELL SERVICE12,8001980-02-29
142-187-03186LULING WELL SERVICE------
242-187-03270LULING WELL SERVICE------
342-187-03456LULING WELL SERVICE------