WELCH G

Oil · District 08 · Lease #21567

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

62k BBL

Cum Gas

294k MCF

casinghead

Wells

4

Production

1993-01 — 2012-01

Peak Month

1993-01

Production History

Cum Oil: 61,914 BBL Cum Gas: 294,173 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

580 BBL/mo

Di (annual)

10.0%

b-factor

0.0

EUR

69,057 BBL

R-squared

0.716

type

exponential

Operator History (from monthly production reports)

2004-01 — 2017-09 PIONEER NATURAL RES. USA, INC. 165 mo
1993-01 — 2003-12 BROWN, TOM INC. 132 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA INC.19,4251985-10-01
3PIONEER NATURAL RES. USA INC.19,3001983-08-23
142-317-30075PIONEER NATURAL RES. USA INC.------
242-317-30161PIONEER NATURAL RES. USA INC.------