MANKA UNIT 1

Oil // district 2 // lease#10025

op: SILVER HILL ENERGY OPERATING LLC

cum_oil

338k BBL

cum_gas

0 MCF

wells

1

production

2011-08 — 2026-03

peak_month

2011-09

-- production_history

cum_oil: 337,854 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

10,261 BBL/mo

Di (annual)

54.7%

b-factor

0.4

EUR

365,905 BBL

R-squared

0.913

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HRILEY EXPLORATION, LLC112,0002011-06-20
EOF // data source: Texas Railroad Commission // 2026