ERWIN "J"

Oil · District 08 · Lease #37690

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

228k BBL

Cum Gas

227k MCF

casinghead

Wells

5

Production

2005-11 — 2025-11

Peak Month

2006-08

Production History

Cum Oil: 228,072 BBL Cum Gas: 227,163 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,967 BBL/mo

Di (annual)

24.6%

b-factor

0.5

EUR

249,161 BBL

R-squared

0.500

type

hyperbolic

Operator History (from monthly production reports)

2005-11 — 2026-07 PIONEER NATURAL RES. USA, INC. 249 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DPIONEER NATURAL RES. USA INC.19,3502016-11-17
2PIONEER NATURAL RES. USA INC.110,0002005-11-14
3PIONEER NATURAL RES. USA INC.110,0002005-11-14
4PIONEER NATURAL RES. USA INC.110,0002005-11-14
1PIONEER NATURAL RES. USA INC.19,6002005-05-12