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.
Natural Gas. NOVEC Energy Solutions, a wholly-owned NOVEC affiliate, competes in the deregulated natural gas markets in the greater Washington, D.C. metropolitan area, Maryland, Virginia, and Pennsylvania and currently provides competitive natural gas service to approximately 20,000 natural gas customers, largely residential.