PINTAIL I 31-30

Oil // district 10 // lease#55759

op: PIONEER NATURAL RES. USA, INC.

cum_oil

747k BBL

cum_gas

0 MCF

wells

3

production

2021-03 — 2026-03

peak_month

2021-08

-- production_history

cum_oil: 747,056 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

58,604 BBL/mo

Di (annual)

238.9%

b-factor

0.9

EUR

1,196,073 BBL

R-squared

0.945

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2809HDE3 OPERATING LLC110,0002020-12-15
4309HDE3 OPERATING LLC110,0002020-12-15
6209HDE3 OPERATING LLC110,3352020-12-15
EOF // data source: Texas Railroad Commission // 2026