O BRIEN -A-

Oil // district 10 // lease#6268

op: PIONEER NATURAL RES. USA, INC.

cum_oil

280k BBL

cum_gas

0 MCF

wells

8

production

1993-01 — 2026-03

peak_month

1995-04

-- production_history

cum_oil: 279,775 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,238 BBL/mo

Di (annual)

10.1%

b-factor

0.0

EUR

263,687 BBL

R-squared

0.314

type

exponential

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9DPIONEER NATURAL RES. USA, INC.15,3002015-01-14
8PIONEER NATURAL RES. USA, INC.19,2502003-03-31
7MIDPAR L.P.19,4501995-01-13
6MIDPAR L.P.19,3001994-08-03
5MIDPAR L.P.19,3001994-03-22
242-329-00051--------
342-329-00050--------
442-329-10392--------
EOF // data source: Texas Railroad Commission // 2026