DOLPHIN 12

Oil // district 10 // lease#40926

op: MARINER ENERGY, INC.

cum_oil

97k BBL

cum_gas

0 MCF

wells

4

production

2010-11 — 2026-03

peak_month

2010-12

-- production_history

cum_oil: 96,561 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,696 BBL/mo

Di (annual)

42.0%

b-factor

0.8

EUR

124,375 BBL

R-squared

0.636

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5APACHE CORPORATION110,7002013-04-11
4APACHE CORPORATION110,8002012-03-20
1MARINER ENERGY, INC.211,0002011-09-28
3APACHE CORPORATION111,0002011-08-23
EOF // multi-state drilling data platform // 2026