Spectra Energy, a natural gas infrastructure company, has announced a number of senior management appointments. These leadership changes are effective Jan. 1, 2012.

Among the new appointments, Allen Capps, currently vice president, business development, Union Gas, will become vice president and controller, Spectra Energy Corp., serving as the company's chief accounting officer.

Sabra Harrington, currently vice president and controller, will become vice president, risk management and financial planning of Spectra Energy Corp. She will be responsible for enterprise-wide risk management and financial planning efforts.

Julie Dill, currently president, Union Gas, Spectra Energy's Ontario-based local distribution company, will become president and chief executive officer, Spectra Energy Partners, the company's master limited partnership. Dill also will assume the role of group vice president, Strategy. In this capacity, she will be responsible for continuing the growth of SEP and providing leadership in setting the long-term strategy of the corporation.

Steve Baker, currently vice president and treasurer, will become president, Union Gas, responsible for setting the overall course and strategy for Union Gas' continued growth in earnings and safe operations in the coming years.

Guy Buckley, currently group vice president, Corporate Development and Strategy, Spectra Energy Corp, will become vice president and treasurer, responsible for the company's financing and capital market activities, interest rate management, liquidity and cash management, and the company's relationships with major banks and credit rating agencies. Buckley also will retain his existing responsibilities for the company's Merger & Acquisition activities.

Greg Rizzo, currently president and chief executive officer, Spectra Energy Partners, will continue in his other primary role as group vice president, regulatory affairs, where he leads the company's Federal Energy Regulatory Commission and U.S. Customs functional areas. Rizzo will take on the additional role of being the corporation's key liaison with the Interstate Natural Gas Association of America, as Ebel assumes the 2012 chairmanship of this critical industry group.