GRAHAM

Oil · District 08 · Lease #32997

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

83k BBL

Cum Gas

301k MCF

casinghead

Wells

3

Production

1993-01 — 2019-12

Peak Month

1994-09

Production History

Cum Oil: 83,248 BBL Cum Gas: 300,736 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,109 BBL/mo

Di (annual)

38.4%

b-factor

0.7

EUR

78,727 BBL

R-squared

0.916

type

hyperbolic

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
1993-01 — 2001-03 HENRY PETROLEUM CORP. 99 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.111,3641995-12-15
2PIONEER NATURAL RES. USA INC.19,2001990-10-17
3PIONEER NATURAL RES. USA INC.19,2001990-10-17