BIRKHEAD

Oil // district 10 // lease#33015

op: PIONEER NATURAL RES. USA, INC.

cum_oil

98k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-01

peak_month

2015-03

-- production_history

cum_oil: 97,795 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,203 BBL/mo

Di (annual)

457.0%

b-factor

1.6

EUR

78,657 BBL

R-squared

0.701

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.111,6002014-05-22
1PARKER & PARSLEY, LTD.19,6001990-12-17
EOF // multi-state drilling data platform // 2026