HATCHER, RUTH

Oil · District 09 · Lease #28771

Operator: PRIME WESTERN DEVELOPMENT, INC.

Fields: HARCO (CHAPPEL)

Cum Oil

191k BBL

Cum Gas

98k MCF

casinghead

Wells

2

Production

1994-04 — 2011-10

Peak Month

1994-08

Production History

Cum Oil: 191,301 BBL Cum Gas: 98,478 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,094 BBL/mo

Di (annual)

103.9%

b-factor

0.3

EUR

116,844 BBL

R-squared

0.716

type

hyperbolic

Operator History (from monthly production reports)

2001-08 — 2026-07 MASADA OIL & GAS 300 mo

1998-11 — 2001-07 ARMOR PETROLEUM, INC. 33 mo

1995-11 — 1998-10 PRIME WESTERN DEVELOPMENT, INC. 36 mo

1995-05 — 1995-10 HARCO LAND, INC. 6 mo

1994-06 — 1995-04 ESPERANZA ENERGY CORP. 11 mo

1994-04 — 1994-05 HARCO LAND, INC. 2 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-197-31282	MASADA OIL & GAS	1	9,000	1994-03-11
9501	42-197-31282	MASADA OIL & GAS	1	9,000	1994-03-11