Transcontinental Gas Pipe Line Company, LLC

Fourth Revised Volume No. 1

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Effective Date: 12/31/2008, Docket: RP09-158-000, Status: Effective

Original Sheet No. 338 Original Sheet No. 338







2. DEFINITIONS (Continued)


(m) "Operational Impact Area" (OIA) - The geographic area described as follows:


OIA 1 - Transco's system in its entirety upstream of Station 90.

OIA 2 - Station 90 and Transco's system in its entirety downstream of Station 90.


(n) "Operational Balancing Agreement" (OBA) - An Agreement between Seller and OBA party to

assign to the OBA party for final resolution any variance between scheduled quantities

and measured quantities at a point. The term OBA shall include Pipeline Interconnect

Balancing Agreements (PIBAs), as applicable.


(o) "Virtual Point" - A receipt or delivery point on Seller's system where physical

quantities are not measured. A Virtual Point is used to facilitate scheduling and

allocation transactions on Seller's system.