TIPPETT SPRABERRY UNIT

Oil · District 7C · Lease #4523

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

374k BBL

Cum Gas

1.5M MCF

casinghead

Wells

12

Production

1993-01 — 2019-06

Peak Month

1993-03

Production History

Cum Oil: 373,924 BBL Cum Gas: 1,518,628 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,102 BBL/mo

Di (annual)

10.4%

b-factor

0.0

EUR

356,984 BBL

R-squared

0.938

type

exponential

Operator History (from monthly production reports)

1997-09 — 2023-04 PIONEER NATURAL RES. USA, INC. 308 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
208APIONEER NATURAL RES. USA INC.213,8001993-11-12
105APIONEER NATURAL RES. USA INC.19,0501992-08-20
106APIONEER NATURAL RES. USA INC.19,0501992-08-20
205APIONEER NATURAL RES. USA INC.19,0501992-08-20
206APIONEER NATURAL RES. USA INC.19,0501992-08-20
303APIONEER NATURAL RES. USA INC.19,0501992-08-20
27PIONEER NATURAL RES. USA INC.18,6001988-02-11
38PIONEER NATURAL RES. USA INC.18,4001985-10-23
1542-461-03224PIONEER NATURAL RES. USA INC.------
1842-461-03227PIONEER NATURAL RES. USA INC.------
19W42-461-03228PIONEER NATURAL RES. USA INC.------
2542-461-10049PIONEER NATURAL RES. USA INC.------