Questar Overthrust Pipeline Company

Second Revised Volume No. 1-A

Effective Date: 04/25/2007, Docket: RP07-360-000, Status: Effective

Original Sheet No. 82 Original Sheet No. 82 : Effective

GENERAL TERMS AND CONDITIONS

13.14 Preservation of Records. Overthrust will retain data as may be

required by appropriate authority.

13.15 Measurement Data Corrections. Measurement data corrections will

be processed within six months of the production month with a three-month

rebuttal period. This standard will not apply in the case of deliberate

omission or misrepresentation or mutual mistake of fact. Parties' other

statutory or contractual rights shall not otherwise be diminished by this

standard.

13.16 Cut Off. The cut off for the closing of measurement is five

business days after the business month.

14. QUALITY OF GAS

14.1 Heat Content. The gas delivered at each of the points of receipt

and delivery shall contain a gross heating value of not less than 950 Btus

per cubic foot nor more than 1,150 Btus per cubic foot.

14.2 Merchantability. The gas shall be commercially free from dust,

gums, gum-forming constituents, dirt, impurities or other solid or liquid

matter which might interfere with its merchantability or cause injury to or

interference with proper operation of the pipelines, regulators, meters, or

other equipment of Overthrust. The gas shall also be free of all matter that

is deemed hazardous or toxic and is subject to regulation by the

Environmental Protection Agency or any State agency having similar

jurisdiction or authority.

14.3 Hydrogen Sulfide. The gas shall not contain more than .25 grain

of H2S per 100 cubic feet.