Lantana Oil & Gas Partners

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EAGLE FORD SHALE LEASEHOLD
Fayette County , Texas

- HighMount's land position is 5,217 Gross and
4,728 Net Mineral Acres in Fayette County, Texas located on trend with Eagle Ford activity -

- Situated in the oil and condensate window of the Eagle Ford trend with
additional Austin Chalk Potential -

- Average Net Revenue Interests of 78.5% -

- Lease Net Revenues range between 75% and 81.25% -

- All leasehold is in the primary term -

- Leases executed April – July 2010 (4,728 net acres) -

- 75% are 5-year paid up leases with expirations in 2015 (3,528 net acres) -

- 25% are 3+2 leases with primary expiration in 2013 (1,200 net acres) -

- No Consent to Assigns -

- No Pref Rights -

- No Depth Restrictions -

- Includes Austin Chalk, Eagle Ford, Buda and Georgetown -

DATA ROOM

SOUTH TEXAS OIL & GAS PACKAGE
Fayette County, Texas

Bids Due: 2/9/2012

West Texas oil package
Culberson County, Texas

Sold

- Total Proved PV(10) of $20.5 MM, as per Ryder Scott Reserve Report effective 9/30/11 -

- A significant block of 3,409.8 gross acres which are 100% held by production -

- Deep rights on 952.0 net acres, which are held by production and prospective for the Brushy Canyon,
Avalon/Bone Spring and Wolfcamp plays -

- 162 BOEPD (120 BOPD and 250 MCFD) gross operated August 2011 production -

- $240,700/month Net Operating Income average last 5 months (April-August 2011) -

- 8 Delaware Sand PUD locations with additional upside drilling opportunities -

- Water flood potential – three (3) pilot injection wells have been permitted -

- Storm Peak is the operator of record on all 44 active wells in this divestiture package -

- Storm Peak has a 100% drilling success rate in the Delaware Sand play in the Geraldine Field -

- Long life oil reserves typical of Delaware Sand wells -

- Significant associated gas production with high liquids content -

- Operational control with low operating costs and low F&D costs -