The gas pipeline industry is hardly glamorous. But it is lucrative and loosely regulated.
Last weekend, two oil and gas pipeline companies announced they would combine to create the biggest such firm in the U.S. when Kinder Morgan offered more than $20 billion to buy El Paso. If the deal goes through, the companies say, the behemoth would become the continent's fourth largest energy corporation.
While the pipeline business has operated largely, well, underground, several recent accidents have drawn attention to safety and the web of regulations that governs the nation's 2.3 million miles of gas pipelines. A growing controversy over a plan to build a major oil pipelline from Canada's Tar Sands to Texas has also spotlighted industry practices...cont'd
http://www.huffingtonpost.com/2011/10/22/underground-industry-gas-_n_1026422.htm