SHACKELFORD 10S

Oil · District 08 · Lease #49576

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

368k BBL

Cum Gas

2.4M MCF

casinghead

Wells

1

Production

2017-12 — 2026-04

Peak Month

2018-01

Production History

Cum Oil: 367,900 BBL Cum Gas: 2,441,433 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

31,528 BBL/mo

Di (annual)

314.2%

b-factor

0.7

EUR

348,710 BBL

R-squared

0.909

type

hyperbolic

Operator History (from monthly production reports)

2017-12 — 2026-07 PIONEER NATURAL RES. USA, INC. 104 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
19HPIONEER NATURAL RES. USA, INC.110,7002017-05-22