A magnitude 5 earthquake struck Oklahoma on Sunday near the largest U.S. oil storage hub, prompting some pipeline companies to shut down operations at the site as a precaution. The tremor occurred 2 kilometers west of Cushing at a depth of 5 kilometers, the U.S. Geological Survey said on its website. Magellan Midstream Partners LP, a pipeline operator, is working through a controlled shutdown of its assets in the area, spokesman Bruce Heine said in an e-mailed statement. There was no damage to its assets and it expects to resume operations on Monday, he said. All companies that run intra-state pipelines that fall under the jurisdiction of the Oklahoma Corporation Commission have shut down operations as a precaution, Matt Skinner, a public information officer for the OCC, said by phone. Magellan typically discontinues operations to check the integrity of assets if an earthquake over a certain strength occurs, Heine […]