Columbia Gas is deeming Thursday as a Critical Day for storage, which means no interruptible storage injections are expected to be available. Upstream affiliate Columbia Gulf said no AutoPAL (Park and Loan) services nor due-pipe imbalance resolution nominations will be allowed effective Thursday.

CenterPoint said Wednesday it has become necessary to schedule 22 meters on Line 2 South to zero as a result of maintenance that began Monday at Custer Compressor Station (see Daily GPI, Oct. 10). The work is expected to be completed on Friday.

Questar reminded customers that maintenance will limit capacity of its ML 104 segment to 440,000 Dth/d for 20 days starting Saturday.

Since early July Pacific Gas and Electric‘s (PG&E) California Gas Transmission (CGT) system has consistently been issuing simultaneous high/low-inventory OFOs that are “symmetrical; i.e., the tolerance band and noncompliance charge on the high-inventory side is the same as the tolerance band and noncompliance charge on the low-inventory side.” But with the recent deployment of new functionality in its NSIDEtracc system, CGT now has the technological capability of calling asymmetrical high/low OFOs when pipeline conditions allow. “As we head into fall and winter, demand and supply patterns are beginning to change. PG&E may utilize this new ability to call asymmetrical OFOs starting as early as this week, if needed,” the dual utility said in asking customers to continue balancing supply and demand on a daily basis.

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