THUNDERBIRD RC FF 50-51

Oil // district 10 // lease#56597

op: PIONEER NATURAL RES. USA, INC.

cum_oil

147k BBL

cum_gas

0 MCF

wells

1

production

2021-12 — 2026-03

peak_month

2022-05

-- production_history

cum_oil: 147,050 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,732 BBL/mo

Di (annual)

49.6%

b-factor

0.0

EUR

114,527 BBL

R-squared

0.367

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2801HPIONEER NATURAL RES. USA, INC.210,3602021-02-12
EOF // data source: Texas Railroad Commission // 2026