Black Hills Exploration and Production

BIG SPRINGS GAS STORAGE FACILITY
Deuel County, Nebraska

Big Springs Gas Storage Facility
Deuel County, Nebraska
- Big Springs Gas Storage Area
- Located ~5 miles northwest of the town of Big Springs
- 44,672 Gross and net acres m/l within unitized area
- Additional 16,261 gross acres / 14,614 net acres outside unit area
- Commercial gas production was established in October, 1950 from the Cretaceous āDā sandstone at a depth of 3,300 feet
- The area produced 41+ BCF between 10/1950 and 3/1975
- Gas storage operations began on June 1, 1976
- Maximum peak design deliverability was 120 MMcfd
- Average annual gas cycle was 8 Bcf
- Injection operations ceased in 1995
- Gas blowdown operations started in 1995 with cumulative production of 40+ Bcf since beginning of blowdown phase
- Current Operations
- Field shut-in April 2009
- Average daily production rate Dec. 2008 ā 1,000 Mcfpd
- Unit maintains storage facility status and all leases/storage agreements
- 30 production/withdrawal wells, 24 observation wells, 9 shut-in
- Working interest 100%; Net Revenue interest 98.8% in unitized formation
- 2 commercial disposal wells and 2 disposal facilities
- Substantial amount of equipment including field gathering systems
- Surface ownership of compressor station and disposal battery
- All easements, rights-of-way and land use permits in place
- 13 Niobrara wells owned and operated by third party ā potential additional gas volumes for the gathering system
- Big Springs Field located within the Niobrara producing area
- 52 square miles of 3D seismic coverage
- Friendly regulatory environment

NOTE: A Confidentiality Agreement ("CA") must be executed prior to receiving the data
package. Please visit our web-site to order this package and download the required CA.
FOR QUESTIONS PLEASE CONTACT |
| Julia Foster, CPL |
(303) 721-6354 ext. 229 |
| David Bickerstaff, Geologist |
(303) 721-6354 ext. 232 |
| Chris McCarthy, P.E. |
(303) 721-6354 ext. 224 |
|
BID DATE
JULY 30, 2010 |
EFFECTIVE DATE
AUGUST 01, 2010 |
CLOSING DATE
AUGUST 31, 2010 |
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