SHACKELFORD, WILLIAM

Oil · District 08 · Lease #33720

Operator: PARKER & PARSLEY DEVELOPMENT L.P

Cum Oil

25k BBL

Cum Gas

39k MCF

casinghead

Wells

3

Production

1993-03 — 1996-08

Peak Month

1994-05

Production History

Cum Oil: 25,182 BBL Cum Gas: 38,893 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

650 BBL/mo

Di (annual)

18.5%

b-factor

2.0

EUR

144,215 BBL

R-squared

0.340

type

hyperbolic

Operator History (from monthly production reports)

1995-03 — 1997-01 PARKER & PARSLEY DEVELOPMENT L.P 22 mo
1993-03 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 24 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7PIONEER NATURAL RES. USA, INC.111,0801985-06-24
9PIONEER NATURAL RES. USA, INC.19,3001985-06-03
8PIONEER NATURAL RES. USA, INC.19,3001984-12-04