SHACKELFORD 41K

Oil · District 08 · Lease #57618

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

212k BBL

Cum Gas

1.2M MCF

casinghead

Wells

1

Production

2022-06 — 2026-04

Peak Month

2022-11

Production History

Cum Oil: 211,578 BBL Cum Gas: 1,244,630 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

24,858 BBL/mo

Di (annual)

295.1%

b-factor

0.6

EUR

240,598 BBL

R-squared

0.981

type

hyperbolic

Operator History (from monthly production reports)

2022-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 50 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11HPIONEER NATURAL RES. USA, INC.19,2502021-10-28