MARINA ENERGY PARTNERSHIP ENTERS AGREEMENT TO PROVIDE ENERGY SERVICES FOR ECHELON IN LAS VEGAS

FOR IMMEDIATE RELEASE

APRIL 30, 2007

MEDIA: JOANNE BRIGANDI X4240

IR: STEPHEN CLARK X4260

609-561-9000

MARINA ENERGY PARTNERSHIP ENTERS AGREEMENT TO PROVIDE ENERGY SERVICES FOR ECHELON IN LAS VEGAS

FOLSOM, N.J. - Marina Energy LLC, a subsidiary of South Jersey Industries [NYSE: SJI], and DCO Energy have entered into a 25-year contract to develop, design, own and operate a district energy system and central energy center for Boyd Gaming’s [NYSE: BYD] Echelon development in Las Vegas. LVE Energy Partners, a joint venture between Marina Energy and DCO, was selected from among several nationally known energy service providers.

Marina and DCO currently provide chilled and hot water via a thermal energy facility for cooling and heating to Borgata Hotel, Casino and Spa in Atlantic City, N.J., a joint venture between Boyd Gaming and MGM MIRAGE.

Construction of the new energy facility will begin this summer.

Echelon will include 5,000 hotel rooms, 750,000 square feet of meeting and convention space, 300,000 square feet of retail space and 140,000 square feet of casino space. The thermal plant, which will be more than twice the size of