BLACK JACK SPRINGS UNIT

Oil // district 3 // lease#26089

op: SOUTHERN BAY OPERATING, L.L.C.

cum_oil

79k BBL

cum_gas

0 MCF

wells

1

production

2013-01 — 2026-03

peak_month

2013-04

-- production_history

cum_oil: 78,964 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,016 BBL/mo

Di (annual)

74.2%

b-factor

0.5

EUR

92,546 BBL

R-squared

0.915

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HSOUTHERN BAY OPERATING, L.L.C.218,2002012-11-30
EOF // data source: Texas Railroad Commission // 2026