AUSTIN, Texas—Many of the millions of Texans who lost power for days after a deadly winter blast overwhelmed the electric grid now have it back, but the crisis was far from over in parts of the South, with many people lacking safe drinking water. More than 190,000 homes and businesses remained without power in Texas according to poweroutage.us Friday morning, down from about 3 million two days earlier, though utility officials said limited rolling blackouts were still possible. The storms also left more than 330,000 from Virginia to Louisiana without power and about 71,000 in Oregon were still enduring a weeklong outage following a massive ice and snow storm. The snow and ice moved into the Appalachians, northern Maryland and southern Pennsylvania, and later the Northeast as the extreme weather was blamed for the deaths of at least 58 people, including a Tennessee farmer trying to save two calves that …