MACKEY

Oil // district 10 // lease#28367

op: BYRD OPERATING COMPANY

cum_oil

128k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2009-08

peak_month

2000-08

-- production_history

cum_oil: 127,662 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,017 BBL/mo

Di (annual)

19.7%

b-factor

2.0

EUR

220,062 BBL

R-squared

0.625

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2LACY & BYRD, INC.411,0002015-07-02
1LACY & BYRD, INC.410,7502015-06-09
EOF // data source: Texas Railroad Commission // 2026