The company said Tuesday it's unclear when excavation might begin.
Officials say 10,000 gallons of oily water have been recovered from the ocean as government and volunteer workers clean up along the Santa Barbara County coastline.
Meanwhile Tuesday, various federal, state and local agencies briefed the Santa Barbara County Board of Supervisors about their oil spill response.
Oil blackened area beaches and created a 10-square-mile slick in the ocean after the onshore pipeline ruptured May 19.
Wildlife officials say 13 birds — mostly brown pelicans — and eight marine mammals, including dolphins and sea lions, were found dead.