WINKLEMAN "B"

Oil · District 08 · Lease #37532

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

12k BBL

Cum Gas

200k MCF

casinghead

Wells

1

Production

2005-04 — 2024-04

Peak Month

2005-04

Production History

Cum Oil: 11,995 BBL Cum Gas: 199,797 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

231 BBL/mo

Di (annual)

92.4%

b-factor

1.1

EUR

12,949 BBL

R-squared

0.478

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2018-04 — 2021-05 DE3 OPERATING LLC 38 mo
2017-05 — 2018-03 PARSLEY ENERGY OPERATIONS, LLC 11 mo
2016-11 — 2017-04 DE OPERATING LLC 6 mo
2005-04 — 2016-10 NORTHSTAR OPERATING COMPANY 139 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.111,7002004-10-19