BIGBY

Oil // district 10 // lease#23290

op: PIONEER NATURAL RES. USA, INC.

cum_oil

72k BBL

cum_gas

0 MCF

wells

3

production

1993-01 — 2026-03

peak_month

2016-04

-- production_history

cum_oil: 72,173 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,138 BBL/mo

Di (annual)

260.5%

b-factor

1.6

EUR

56,107 BBL

R-squared

0.473

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4JM COX RESOURCES, L.P.112,0002015-10-06
3COX, JOHN L.19,0001985-07-08
242-173-30202--------
EOF // data source: Texas Railroad Commission // 2026