ATRELLE B

Oil · District 08 · Lease #34958

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

62k BBL

Cum Gas

141k MCF

casinghead

Wells

1

Production

1996-05 — 2025-06

Peak Month

1997-06

Production History

Cum Oil: 61,571 BBL Cum Gas: 140,971 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

350 BBL/mo

Di (annual)

7.1%

b-factor

0.0

EUR

57,612 BBL

R-squared

0.653

type

exponential

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2020-09 — 2021-05 DE3 OPERATING LLC 9 mo
1997-09 — 2020-08 PIONEER NATURAL RES. USA, INC. 276 mo
1996-05 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 16 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.29,4501996-01-12