(Updates with details from Southern California Edison, Southern California Gas)
By Bernard Woodall
LOS ANGELES, July 29 (Reuters) - A moderate earthquake spared Los Angeles oil refineries, pipelines, nuclear plants and the city’s electrical grid on Tuesday, but caused some minor local power outages.
The biggest impact to energy flows came as Kinder Morgan KMP.N shut a refined products pipeline for pressure testing, but a spokesman said there was no sign of any leaks or damage following the 5.4-magnitude quake.
"The good news at this point is that there is no indication of any damage," Kinder Morgan spokesman Larry Pierce said.
Southern California Edison (EIX.N) reported an undetermined number of power outages in the area of Chino Hills, near the center of the earthquake. [nN29372008]
"The grid is in good shape," said Gregg Fishman of the California Independent System Operator. "There is no impact that we can see at this point."
Valero Energy Corp (VLO.N), Chevron (CVX.N), ConocoPhillips (COP.N), Exxon Mobil (XOM.N), Tesoro TSO.N and BP (BP.L) all said their refineries had not been damaged by the quake.
Cash refined products traders said the Los Angeles market had not reacted to the quake.
"Not a peep," said one trader. "It was too far from the refineries to have any impact."
Both the San Onofre nuclear generating station, between Los Angeles and San Diego, and the Diablo Canyon nuclear plant, northeast of Los Angeles, were operating normally, utility officials said.
A spokesman for Pacific Gas and Electric Co’s (PCG.N) California Gas Transmission system said personnel at the company’s Hinkley compressor station in Southern California felt the quake but there was no damage or effect on operations.
The spokesman said the Hinkley facility was likely the company’s closest facility to the epicenter of the quake.
Southern California Gas, Co, a unit of Sempra (SRE.N), said crews were responding to a small number of reports of natural gas leaks in homes in the general area of the center of the quake.
The Department of Transportation’s pipeline safety office said it reached out to the state and all the the operators there and that none of them had reported back with any problems. (Additional reporting by Erwin Seba and Eileen O‘Grady in Houston; Rebekah Kebede, Eileen Moustakis, Timothy Gardner and Haitham Haddadin in New York; Writing by Matthew Robinson; Editing by Christian Wiessner)