THUNDERBIRD GG 50-51

Oil // district 10 // lease#56598

op: PIONEER NATURAL RES. USA, INC.

cum_oil

401k BBL

cum_gas

0 MCF

wells

1

production

2021-12 — 2026-03

peak_month

2022-05

-- production_history

cum_oil: 401,091 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

30,185 BBL/mo

Di (annual)

153.6%

b-factor

0.6

EUR

544,715 BBL

R-squared

0.960

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2807HPIONEER NATURAL RES. USA, INC.210,3602021-02-04
EOF // data source: Texas Railroad Commission // 2026