Atrial tachycardia is a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.
Page Content. Northern Natural Gas Company (Northern) is a subsidiary of Berkshire Hathaway Energy based in Omaha, Nebraska and has been in business since 1930. Northern owns and operates the largest interstate natural gas pipeline system in the United States.
In 2009, the company changed its name from Equitable Resources, Inc. to EQT Corporation. In 2011, EQT opened one of the first compressed natural gas (CNG) fueling stations in the Strip District of Pittsburgh. In 2013, the company sold its natural gas distribution business to Peoples Natural Gas for $740 million.