UPCHURCH "B"

Oil · District 03 · Lease #22622

Operator: ROSEWOOD RESOURCES, INC.

Cum Oil

137k BBL

Cum Gas

380k MCF

casinghead

Wells

1

Production

1994-10 — 1999-11

Peak Month

1995-01

Production History

Cum Oil: 136,650 BBL Cum Gas: 380,475 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,362 BBL/mo

Di (annual)

319.6%

b-factor

0.3

EUR

120,340 BBL

R-squared

0.907

type

hyperbolic

Operator History (from monthly production reports)

1998-09 — 2000-03 ROSEWOOD RESOURCES, INC. 19 mo
1994-10 — 1998-08 CHESAPEAKE OPERATING, INC. 47 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HSANDEL OPERATING COMPANY310,6501999-07-16