OLDHAM-GRAHAM 35F

Oil // district 10 // lease#55895

op: PIONEER NATURAL RES. USA, INC.

cum_oil

232k BBL

cum_gas

0 MCF

wells

1

production

2021-01 — 2026-03

peak_month

2021-08

-- production_history

cum_oil: 231,845 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

22,261 BBL/mo

Di (annual)

314.9%

b-factor

0.9

EUR

359,932 BBL

R-squared

0.971

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HPIONEER NATURAL RES. USA, INC.210,2312020-05-19
EOF // data source: Texas Railroad Commission // 2026