GRIMES A 19-18

Oil // district 9 // lease#20401

op: PIONEER NATURAL RES. USA, INC.

cum_oil

541k BBL

cum_gas

0 MCF

wells

2

production

2019-05 — 2026-03

peak_month

2019-08

-- production_history

cum_oil: 540,765 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

12,841 BBL/mo

Di (annual)

36.0%

b-factor

0.0

EUR

428,358 BBL

R-squared

0.605

type

exponential

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4401HDE3 OPERATING LLC19,8002018-11-20
4201HDE3 OPERATING LLC29,5002018-10-16
EOF // data source: Texas Railroad Commission // 2026