| Lease Name | Location | Operator | Oil Prod | Gas Prod | 
| Central Lake 15 | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Central Lake 28 | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Central Lake 36 | Antrim County, MI | S R W INC |  |  | 
| Chess Play | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Chestonia 31 Pawn Play Antrim | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Crazy Horse Antrim | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Crazy Horse Antrim | Antrim County, MI | QUICKSILVER RESOURCES INC |  |  | 
| Crazy Horse Antrim | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Crazy Horse Antrim | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Crazy Horse Antrim | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Crazy Horse C1-7 Antrim | Antrim County, MI | QUICKSILVER RESOURCES INC |  |  | 
| Crazy Horse D1-6 Antrim | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Custer 1 Antrim | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Custer 15 Antrim | Antrim County, MI | D T E GAS AND OIL CO |  |  | 
| Custer 19 | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Custer 20 Antrim | Antrim County, MI | D T E GAS AND OIL CO |  |  | 
| Custer 29 Antrim | Antrim County, MI | D T E GAS AND OIL CO |  |  | 
| Custer 33 Antrim | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Custer 4 Antrim Unit | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Custer 6 | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Custer 7 | Antrim County, MI | O I L ENERGY CORP |  |  | 
| Custer-Mancelona Unit | Antrim County, MI | D T E GAS AND OIL CO |  |  | 
| Echo 10 (King Arthur) Antrim | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Echo 11 Antrim | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Echo 11 B (56446) | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Echo 11 B (58058) | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Echo 24 Merlin Antrim | Antrim County, MI | D T E GAS AND OIL CO |  |  | 
| Echo 26 Antrim | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Echo 30 Antrim | Antrim County, MI | S R W INC |  |  | 
| Echo 33 Antrim | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Echo 9 Antrim | Antrim County, MI | S R W INC |  |  | 
| Forest Home 10 | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Forest Home 12 | Antrim County, MI | S R W INC |  |  | 
| Forest Home 14 | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Forest Home 34 | Antrim County, MI | RIVERSIDE ENERGY MICHIGAN LLC |  |  | 
| Green River A2-7 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River A4-17 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River A1-25 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River A3-35 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River B2-9 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River B4-8 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River C1-25 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River C3-26 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River C3-8 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River D2-9 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River I A3-26 | Antrim County, MI | QUICKSILVER RESOURCES INC |  |  | 
| Green River III A1-35 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River III A1-4 | Antrim County, MI | QUICKSILVER RESOURCES INC |  |  | 
| Green River III A3-3 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  | 
| Green River III A3-33 | Antrim County, MI | BREITBURN OPERATING LIMITED PARTNERSHIP |  |  |