HALFF "10"

Oil · District 08 · Lease #37692

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

58k BBL

Cum Gas

111k MCF

casinghead

Wells

3

Production

2006-01 — 2026-04

Peak Month

2007-04

Production History

Cum Oil: 57,955 BBL Cum Gas: 110,879 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

892 BBL/mo

Di (annual)

54.9%

b-factor

0.7

EUR

47,092 BBL

R-squared

0.612

type

hyperbolic

Operator History (from monthly production reports)

2006-01 — 2026-07 PIONEER NATURAL RES. USA, INC. 247 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA, INC.210,5002008-02-11
2PIONEER NATURAL RES. USA, INC.110,0002006-11-29
1PIONEER NATURAL RES. USA, INC.19,8502005-10-20