CHAPMAN, J. O.

Oil · District 04 · Lease #9665

Operator: TEXACO E & P INC.

Fields: CHAPMAN RANCH (O-18)

Cum Oil

9k BBL

Cum Gas

6k MCF

casinghead

Wells

4

Production

1993-01 — 2002-06

Peak Month

1995-01

Production History

Cum Oil: 8,872 BBL Cum Gas: 5,651 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

501 BBL/mo

Di (annual)

68.3%

b-factor

0.8

EUR

24,948 BBL

R-squared

0.774

type

hyperbolic

Operator History (from monthly production reports)

2002-05 — 2002-09 NEG OPERATING LLC 5 mo

1999-09 — 2002-04 SHANA PETROLEUM COMPANY 32 mo

1996-04 — 1999-08 SHELL WESTERN E&P INC. 41 mo

1994-08 — 1996-03 ROYAL PRODUCTION COMPANY, INC. 20 mo

1993-01 — 1994-07 TEXACO E & P INC. 19 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
64	42-355-30450	NEG OPERATING LLC	8	7,600	2001-09-26
60	42-355-30423	NEG OPERATING LLC	4	7,000	2001-05-11
52	42-355-30378	NEG OPERATING LLC	2	7,800	1997-05-19
114	42-355-30778	TEXACO INC.	1	6,962	1982-11-24