SHACKELFORD E39D

Oil · District 08 · Lease #52778

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

320k BBL

Cum Gas

1.6M MCF

casinghead

Wells

1

Production

2019-10 — 2026-04

Peak Month

2020-12

Production History

Cum Oil: 320,046 BBL Cum Gas: 1,553,898 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,359 BBL/mo

Di (annual)

105.0%

b-factor

0.2

EUR

305,296 BBL

R-squared

0.954

type

hyperbolic

Operator History (from monthly production reports)

2019-10 — 2026-07 PIONEER NATURAL RES. USA, INC. 82 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
104HPIONEER NATURAL RES. USA, INC.110,6002019-02-12