LOS ANGELES — California lawmakers demanded a stop to oil drilling off their state’s coast Tuesday as outrage grew over an enormous oil spill and new questions and details emerged about the source and reporting of the leak.

With as many as 144,000 gallons of oil continuing to spread through the waters off Orange County, legislators said they would push to block any new federal drilling leases in the Pacific Ocean along the West Coast. A moratorium on new leases in California’s state waters — which extend three miles from shore — has been in place since a massive 1969 oil spill off Santa Barbara.