MCCAMPBELL "21"

Oil · District 08 · Lease #40658

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

133k BBL

Cum Gas

138k MCF

casinghead

Wells

2

Production

2010-10 — 2024-12

Peak Month

2014-12

Production History

Cum Oil: 132,914 BBL Cum Gas: 137,654 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,897 BBL/mo

Di (annual)

22.3%

b-factor

0.1

EUR

113,319 BBL

R-squared

0.826

type

hyperbolic

Operator History (from monthly production reports)

2010-10 — 2026-07 PIONEER NATURAL RES. USA, INC. 190 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.111,4002011-09-09
1PIONEER NATURAL RES. USA INC.111,3002010-06-07