MIDKIFF 43

Oil · District 08 · Lease #35321

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

13k BBL

Cum Gas

146k MCF

casinghead

Wells

1

Production

1996-08 — 2012-02

Peak Month

1997-05

Production History

Cum Oil: 12,885 BBL Cum Gas: 145,703 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

336 BBL/mo

Di (annual)

66.6%

b-factor

0.7

EUR

15,043 BBL

R-squared

0.897

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2015-06 PIONEER NATURAL RES. USA, INC. 214 mo
1996-08 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 13 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7XTO ENERGY INC.18,6001991-11-20