A massive pipeline buildout is sweeping across Texas, Louisiana, and Oklahoma, marking the largest expansion of Gulf Coast natural-gas capacity since the 2008 shale boom, according to Bloomberg. As many as a dozen projects are slated for completion next year, enough to boost the region's gas-shipping capacity by 13%, or about the equivalent of Canada's total consumption, according to US Energy Information Administration data. "This is the most activity I've seen in my 20 years in the industry," said Jack Weixel of East Daley Analytics. Though most…