STUBBLEFIELD "26A"

Oil · District 08 · Lease #38737

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

120k BBL

Cum Gas

238k MCF

casinghead

Wells

2

Production

2008-02 — 2025-03

Peak Month

2015-05

Production History

Cum Oil: 119,876 BBL Cum Gas: 238,384 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,035 BBL/mo

Di (annual)

34.3%

b-factor

0.1

EUR

78,925 BBL

R-squared

0.768

type

hyperbolic

Operator History (from monthly production reports)

2008-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 222 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.111,2002013-12-05
1PIONEER NATURAL RES. USA INC.110,5002007-07-16