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EXHIBIT 4.12

AGREEMENT

THIS AGREEMENT is dated for reference the 2nd day of
April, 2008.

BETWEEN:

TERYL RESOURCES CORP. 240 -
11780 Hammersmith Way Richmond, BC V7A 5E9

(hereinafter referred to as
"Teryl")

OF THE FIRST PART

AND:

IAS ENERGY, INC.240 -
11780 Hammersmith Way Richmond, BC V7A 5E9

(hereinafter referred to as "IASCA")

OF THE SECOND PART

WHEREAS:

Teryl wishes to purchase all of IAS Energy, Inc.s interest in
three (3) gas wells located in Knox and Laurel County, Kentucky. The Clarence
Bright #1 in Laurel County, The Ken Lee in Knox County, and The Elvis Farris #2
in Knox County, as to a 60% working interest (36% NRI) in each gas well
(hereinafter collectively The Gas Wells).

NOW THEREFORE in consideration of the mutual covenants and
conditions set forth herein, the parties hereto agree as follows:

| | 1. | IASCA agrees to sell 100% of its interest in The Gas
      Wells in consideration of an initial payment of US$25,000. The balance of
      funds owed by Teryl to IASCA for the purchase of The Gas Wells will be
      determined by an independent report, prepared by a qualified petroleum
      geologist.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |    |                                                                                                                                                                                                                                                                                                                
| | 2. | All revenue received from The Gas Wells will now be
      received by Teryl upon execution of this Agreement.                                                                                                                                                                                                  
| |    |                                                                                                                                                                                                                                                                                                                
| | 3. | This Agreement and the purchase of The Gas Wells is
      subject to the approval of the TSX Venture Exchange and the British
      Columbia Securities Commission (Regulatory
  Authorities).                                                                                                               

IN WITNESS WHEREOF the parties hereto have executed this
Agreement as of the day and year first above written.

|TERYL RESOURCES CORP.  |  | IAS ENERGY, INC.    
|---------------------- |  | --------------------
|                       |  |                     
|John
      Robertson |  | John Robertson    
|Signature              |  | Signature           
|                       |  |                     
|                       |  |                     
|John Robertson         |  | John
      Robertson
|Print Name             |  | Print Name          
|                       |  |                     
|                       |  |                     
|President              |  | President           
|Title                  |  | Title               

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