Washington was running out of gasoline on Friday, even as the country"s largest fuel pipeline network ramped up deliveries following a cyberattack and U.S. officials assured motorists that supplies would return to normal soon. The six-day Colonial Pipeline shutdown was the most disruptive cyberattack on record. Widespread panic buying continued two days after the pipeline network restarted, leaving filling stations across the U.S. Southeast out of gas even in areas far from the pipeline. read more With more Americans taking road trips as pandemic restrictions ease, pump prices are at their highest in years. The average national gasoline price has climbed to almost $3.04, the most expensive since October 2014, the American Automobile Association said. As politicians discussed legislation to improve cyber defenses, more gasoline stations shut down near them in the capital of the world"s largest oil-consuming nation. On Friday gas station outages in Washington, D.C., climbed to 88%, from 79% the day before, tracking firm GasBuddy said. President Joe Biden assured motorists supplies should start returning to normal by this weekend. "Most of these states/areas with outages have continued to see panicked buying, which is likely a contributing factor to the slow-ish recovery thus far," said GasBuddy"s Patrick De Haan. "It will take a few weeks." Colonial Pipeline announced late Thursday it had restarted its entire pipeline system linking refineries on the Gulf Coast to markets along the eastern seaboard. Some states experienced modest improvements but still had a lot of gasoline outages. Some 65% of gas stations in North Carolina were without fuel, while in Virginia, South Carolina and Georgia just under 50% were empty, GasBuddy said. In Washington, D.C., Dennis Li was stuck on Friday at a Sunoco gas station that was out of fuel. He had tried to find gas at four stations during the day, with no luck. "I"m running on empty to the point where I don"t want to drive anymore," said Li, who is from Annapolis, Maryland. Minutes before the last of four stations ran out of gas on River Road in Bethesda, Maryland, a suburb a mile north of Washington, drivers were mostly calm. Still, some were shocked to hear about the shortage. Nicholas Swann had driven from his home in the Adams Morgan neighborhood of Washington to Bethesda to get gasoline, where the wait at the Shell station was 15 minutes. "We were originally going to drive out to the beach this weekend but we don"t know if we will, because I can"t make it there and back on one tank of gas," Swann said. REGULATORS, REFINERS REACT TO OUTAGE The hacking group blamed for the attack, DarkSide, said it had hacked four other companies including a Toshiba subsidiary in Germany. read more Colonial Pipeline has not determined how the initial breach occurred, a spokeswoman said on Thursday. The privately held company has focused on cleaning its networks, restoring data and reopening the pipeline. Colonial has not disclosed how much money the hackers were seeking or whether it paid. Bloomberg News reported that it paid nearly $5 million to hackers. read more To speed delivery of fuel supplies, four states and federal regulators relaxed restrictions on fuel truck drivers, and Washington issued shipping waivers allowing U.S. refiners Valero Energy Corp (VLO.N) and Citgo Petroleum to use foreign-flagged vessels to move gasoline and diesel from the U.S. Gulf Coast to East Coast ports. read more Congressional committee members on Friday reintroduced legislation to support efforts by the Department of Homeland Security to secure pipelines and pipeline facilities from cyberattacks. Gulf Coast refiners that send fuel to market through the Colonial Pipeline have cut production because they have been unable to move gasoline, diesel and jet fuel through the pipeline. A smaller, alternative pipeline filled to capacity quickly after Colonial shut its network last Friday. "Imports are likely to increase from Europe to offset the shortfall but will take time to arrive," said Chris Midgley at S&P Global Platts.