COBLE "C"

Oil · District 8A · Lease #3566

Operator: WALKABOUT OPERATING, LLC

Fields: LEVELLAND

Cum Oil

193k BBL

Cum Gas

87k MCF

casinghead

Wells

10

Production

1993-01 — 2026-04

Peak Month

2004-03

Production History

Cum Oil: 192,968 BBL Cum Gas: 86,991 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

837 BBL/mo

Di (annual)

6.1%

b-factor

0.0

EUR

156,732 BBL

R-squared

0.749

type

exponential

Operator History (from monthly production reports)

2021-01 — 2026-07 WALKABOUT OPERATING, LLC 67 mo
2018-07 — 2020-12 NORTH FORK PETROLEUM, LLC 30 mo
1995-11 — 2018-06 OIL MANAGEMENT CORPORATION 272 mo
1995-08 — 1995-10 K.M.A. OPERATING, INC. 3 mo
1995-03 — 1995-07 BRAZOS PETROLEUM, INC. 5 mo
1993-01 — 1995-02 MAYNARD OIL CO. 26 mo

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10WWALKABOUT OPERATING, LLC25,1002025-04-15
6AWALKABOUT OPERATING, LLC15,2001986-03-27
142-219-80007WALKABOUT OPERATING, LLC------
242-219-00183WALKABOUT OPERATING, LLC------
2W42-219-00183WALKABOUT OPERATING, LLC------
342-219-00185WALKABOUT OPERATING, LLC------
5W42-219-31179WALKABOUT OPERATING, LLC------
7W42-219-31177WALKABOUT OPERATING, LLC------
842-219-31163WALKABOUT OPERATING, LLC------
9WS42-219-82071WALKABOUT OPERATING, LLC------