SHACKELFORD I

Oil · District 08 · Lease #48593

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

536k BBL

Cum Gas

2.5M MCF

casinghead

Wells

1

Production

2017-04 — 2026-04

Peak Month

2018-01

Production History

Cum Oil: 536,198 BBL Cum Gas: 2,543,940 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,874 BBL/mo

Di (annual)

84.7%

b-factor

0.4

EUR

533,295 BBL

R-squared

0.913

type

hyperbolic

Operator History (from monthly production reports)

2017-04 — 2026-07 PIONEER NATURAL RES. USA, INC. 112 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3309HPIONEER NATURAL RES. USA, INC.110,5002015-09-25