HALFF ESTATE "26"

Oil · District 7C · Lease #16281

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

24k BBL

Cum Gas

95k MCF

casinghead

Wells

2

Production

2007-04 — 2026-04

Peak Month

2007-06

Production History

Cum Oil: 24,245 BBL Cum Gas: 94,597 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

533 BBL/mo

Di (annual)

76.9%

b-factor

0.6

EUR

18,306 BBL

R-squared

0.411

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2018-08 — 2021-05 DE3 OPERATING LLC 34 mo
2007-04 — 2018-07 JM COX RESOURCES, L.P. 136 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA, INC.210,5002022-06-01
2PIONEER NATURAL RES. USA, INC.110,4002007-03-09