HALFF ESTATE "D"

Oil · District 7C · Lease #16222

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

33k BBL

Cum Gas

80k MCF

casinghead

Wells

1

Production

2007-04 — 2026-04

Peak Month

2007-06

Production History

Cum Oil: 32,718 BBL Cum Gas: 79,787 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

787 BBL/mo

Di (annual)

47.2%

b-factor

0.4

EUR

32,344 BBL

R-squared

0.570

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 (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.110,4002007-02-23