ATHEY, CHARLES B. -C-

Oil · District 08 · Lease #25296

Operator: SHELL WESTERN E&P

Fields: COYANOSA, N. (DELAWARE)

Cum Oil

93k BBL

Cum Gas

263k MCF

casinghead

Wells

6

Production

1993-01 — 2013-01

Peak Month

1993-10

Production History

Cum Oil: 93,166 BBL Cum Gas: 262,917 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,059 BBL/mo

Di (annual)

13.9%

b-factor

0.0

EUR

91,094 BBL

R-squared

0.577

type

exponential

Operator History (from monthly production reports)

2022-02 — 2026-07 P.O.&G. OPERATING, LLC 54 mo

2021-07 — 2022-01 MECO IV HOLDCO, LLC 7 mo

2015-09 — 2021-06 MECO IV, LLC 70 mo

2012-10 — 2015-08 SHELL WESTERN E&P 35 mo

2005-01 — 2012-09 CHESAPEAKE OPERATING, INC. 93 mo

2002-11 — 2004-12 PECOS PRODUCTION COMPANY 26 mo

1993-01 — 2002-10 MOBIL PRODUCING TX. & N.M. INC. 118 mo

Wells (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
6	42-371-33596	P.O.&G. OPERATING LLC	1	5,500	1981-10-15
4	42-371-33434	P.O.&G. OPERATING LLC	1	5,500	1981-06-02
5	42-371-33435	P.O.&G. OPERATING LLC	1	5,500	1981-06-02
3	42-371-33091	P.O.&G. OPERATING LLC	1	5,500	1980-05-19
2	42-371-32758	P.O.&G. OPERATING LLC	1	6,600	1979-05-01
1	42-371-32622	P.O.&G. OPERATING LLC	1	6,200	1978-09-27