GRAHAM -A-

Oil · District 08 · Lease #35011

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

23k BBL

Cum Gas

66k MCF

casinghead

Wells

1

Production

1996-04 — 2019-08

Peak Month

1996-05

Production History

Cum Oil: 22,631 BBL Cum Gas: 66,360 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

115 BBL/mo

Di (annual)

4.2%

b-factor

0.0

EUR

28,885 BBL

R-squared

0.310

type

exponential

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2018-12 — 2021-05 DE3 OPERATING LLC 30 mo
2011-01 — 2018-11 LEGACY RESERVES OPERATING LP 95 mo
2009-01 — 2010-12 COG OPERATING LLC 24 mo
2001-04 — 2008-12 HENRY PETROLEUM LP 93 mo
1996-04 — 2001-03 HENRY PETROLEUM CORP. 60 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.111,3641995-12-15