Southern California Gas issued a high-linepack OFO for Saturday, saying Buy-Back charges will be assessed to customers who deliver into its system more than 110% of their actual gas usage on the OFO day. “Please remember that the Winter Balancing Rules are currently in effect and you must also comply with the appropriate minimum delivery requirements,” the giant LDC added.

Pacific Gas & Electric kept a systemwide Stage 2 high-inventory OFO that had been implemented Friday in place through at least Saturday, and it slightly tightened the tolerance for positive daily imbalances from 6% to 5%.

CIG declared a Strained Operating Condition (SOC) effective Saturday through Tuesday’s gas day “unless specifically terminated sooner.” CIG said that with expected warm weather in its service area and “storage inventories already at the normally high levels for this time of year, the pipeline’s ability to absorb imbalances caused by mismatches between scheduled receipts and deliveries or those imbalances arising from variations in actual gas flow from scheduled quantities is extremely limited. These conditions also severely limit CIG’s ability to handle storage injections in excess of each storage shipper’s Available Daily Injection Quantity (ADIQ) or inventory levels above Maximum Available Capacity (MAC). During the effective period of the SOC, shippers should anticipate that CIG will require all transportation transactions to be in balance between receipts and deliveries. Additionally, all storage customers should adjust flowing supplies to maintain storage injections at or below current ADIQ limits and should assure that their respective inventory levels do not exceed MAC.”

Citing “very high” linepack in its northern portion, full storage at the Jackson Prairie facility and recent customer banking on its system that has exacerbated the problem, Northwest declared a General Entitlement for Underruns (with 5% imbalance tolerance) for receiving parties north of the Kemmerer (WY) Compressor Station effective Saturday (Nov. 15).

Southwest Gas lifted Friday a Hold to Burn Notice that had been issued Nov. 7, saying the low linepack on Kern River that prompted the notice had been restored to normal levels. Southwest said it notified transportation customers that it was resuming normal nominating and scheduling procedures Friday.

Transco said due to colder weather forecasts for its entire Northeast market area and continuing flexibility limitations associated with a Sept. 14 pipe rupture near Station 170 in Appomattox, VA, it was issuing an Imbalance Makeup Notice Friday. All buyers and Operational Balancing Agreement (OBA) customers must reduce their cumulative month-to-date due-pipeline imbalances on all firm and interruptible services and OBAs to no greater than 5% or 1,000 Dth, whichever is greater, by no later than the start of Wednesday’s gas day and continuing until further notice.

Columbia Gas declared a force majeure event Friday on Line 1278 in Milford, PA, due to a rupture that occurred Nov. 5. Spokesman Kelly Merritt said Columbia did not announce the rupture then because there has been no impact to customer service. Repairs to the pipeline are estimated to take three to five weeks.

NGPL will perform maintenance Tuesday through Thursday on the electrical feed to Compressor Station 302 in Montgomery County, TX. NGPL said the area power company, Entergy, was unable to accommodate its request to have this work coincide with similar Nov. 4-6 maintenance at Compressor Station 343. As a result of the power outage this week compression will be unavailable at Station 302, requiring a reduction in eastbound capacity through Segment 25 on NGPL’s Louisiana Line. ITS/AOR and Firm Secondary out-of-path transportation will not be available, the pipeline said.

Algonquin noted Friday that although an unplanned outage at its Burrillville (RI) Compressor Station (see Daily GPI, Nov. 10) still has not caused any interruption of services, it will take the resulting capacity reduction into account as necessary in scheduling future gas flow. Algonquin estimated that the compressor unit will remain out of service through Nov. 25.

Two people were hospitalized after an explosion early Friday morning on a 20-inch diameter Enogex gas gathering line in rural Grady County, OK. There were no deaths, said Johnnie Moyer, acting undersheriff of Grady County. The explosion’s cause was under investigation.

Questar has scheduled installation of a new filter/separator for the Northwest tap at its Clay Basin storage facility for Monday through Wednesday, during which no physical withdrawals will be allowed. Questar said no customer impact is expected ” due to the predominant injection nominations through the point.”

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