OLDHAM-GRAHAM 35A

Oil · District 08 · Lease #55715

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

166k BBL

Cum Gas

508k MCF

casinghead

Wells

1

Production

2020-11 — 2026-04

Peak Month

2021-12

Production History

Cum Oil: 166,358 BBL Cum Gas: 508,191 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,780 BBL/mo

Di (annual)

131.7%

b-factor

0.3

EUR

166,206 BBL

R-squared

0.954

type

hyperbolic

Operator History (from monthly production reports)

2020-11 — 2026-07 PIONEER NATURAL RES. USA, INC. 69 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPIONEER NATURAL RES. USA, INC.110,2312020-05-19