Transwestern Pipeline Company

Second Revised Volume No. 1

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Effective Date: 01/01/2003, Docket: RP00-490-002, Status: Effective

Original Sheet No. 162 Original Sheet No. 162 : Effective

Form of Service Agreement - Form S

Rate Schedule SP-1

EXHIBIT A

TRANSWESTERN PIPELINE COMPANY

NATURAL GAS SUPPLY POOLING AGREEMENT

SUPPLY POOL POINTS

DATED: _______________

SUPPLY POOLING AREA SUPPLY POOL POINT NAME SUPPLY POOL POI NUMBER

------------------- ---------------------- ----------------------

WEST TEXAS POOL WEST TEXAS POOL 58646

PANHANDLE PANHANDLE POOL 58647

CENTRAL CENTRAL POOL 58649

SAN JUAN SAN JUAN POOL 58648

SAN JUAN (LA PLATA) LA PLATA POOL 500543