Need Original Lease - Harrison Co TX

I received a Division Order form BP America Production with a Property Description I don't recognize. I called BP for a copy of the underlying Lease, but they're still working on it. I tried searching the county records, but not sure what to reference in the search. Can anyone give me guidance on how to locate the original lease?

Property #: 106253/1

Property Name: Whipkey Gas Unit 1H

Harrison County, TX

Property Description:

680.797 ACRES OUT OF THE MICAJAH LINDSEY SVY, AB-393, WILLIAM TIPTON SVY, AB-712, GEORGE W. SMITH SVY, AB-648 & LEROY R. HODGES SVY, AB-315

Thanks in advance...

BP has a copy.