ERWIN '45'

Oil · District 08 · Lease #45524

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

101k BBL

Cum Gas

179k MCF

casinghead

Wells

2

Production

2014-05 — 2022-09

Peak Month

2014-11

Production History

Cum Oil: 101,290 BBL Cum Gas: 179,216 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,812 BBL/mo

Di (annual)

24.0%

b-factor

0.2

EUR

112,320 BBL

R-squared

0.358

type

hyperbolic

Operator History (from monthly production reports)

2014-05 — 2026-07 PIONEER NATURAL RES. USA, INC. 147 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.111,3002014-05-30
1PIONEER NATURAL RES. USA INC.111,3002014-02-10