GRAHAM, MARY EST.

Oil · District 09 · Lease #21491

Operator: PETEX

Cum Oil

8k BBL

Cum Gas

118k MCF

casinghead

Wells

3

Production

1993-01 — 2004-07

Peak Month

1993-05

Production History

Cum Oil: 7,974 BBL Cum Gas: 117,965 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

85 BBL/mo

Di (annual)

11.9%

b-factor

0.0

EUR

8,517 BBL

R-squared

0.489

type

exponential

Operator History (from monthly production reports)

2010-01 — 2013-07 PETEX 43 mo
2005-01 — 2009-12 MCCLYMOND, LTD. 60 mo
1993-01 — 2004-12 ALLAR CO., THE 144 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PETEX15,6001982-09-08
2PETEX15,6001981-12-31
1PETEX15,7001981-05-19