HALFMANN "28A"

Oil · District 08 · Lease #41897

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

46k BBL

Cum Gas

76k MCF

casinghead

Wells

1

Production

2011-09 — 2016-07

Peak Month

2012-01

Production History

Cum Oil: 46,169 BBL Cum Gas: 76,104 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,701 BBL/mo

Di (annual)

473.6%

b-factor

1.5

EUR

114,303 BBL

R-squared

0.968

type

hyperbolic

Operator History (from monthly production reports)

2011-09 — 2017-04 PIONEER NATURAL RES. USA, INC. 68 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.110,8002011-06-08