THUNDERBIRD B 50-51

Oil · District 08 · Lease #55220

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

751k BBL

Cum Gas

2.1M MCF

casinghead

Wells

2

Production

2020-09 — 2026-04

Peak Month

2021-03

Production History

Cum Oil: 750,784 BBL Cum Gas: 2,061,373 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

69,942 BBL/mo

Di (annual)

459.4%

b-factor

0.9

EUR

819,313 BBL

R-squared

0.898

type

hyperbolic

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

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2802HPIONEER NATURAL RES. USA, INC.29,0002020-07-01
4202HPIONEER NATURAL RES. USA, INC.29,5002020-07-01