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.
Northern Indiana Public Service Company (NIPSCO), serves natural gas and electric customers across the northern third of Indiana. One of seven energy distribution companies of NiSource, the Merrillville-based company is the largest natural gas distributor and second largest electric distributor in the state.