EXHIBIT 99.1

NEWS RELEASE


P.O. Box 209
Evansville, IN 47702-0209
March 30, 2001

FOR IMMEDIATE RELEASE


Indiana Gas, SIGECO to operate as Vectren Energy Delivery

EVANSVILLE, Ind., (March 30, 2001) - Vectren Corporation is
undertaking the next phase of a multi-step realignment of its
utility operations by creating a common name for Vectren's
regulated distribution businesses.  Indiana Gas Co. and Southern
Indiana Gas and Electric Co. will begin doing business as Vectren
Energy Delivery of Indiana effective April 1, 2001.

The new name will cover the electric and gas transmission and
distribution functions of Indiana Gas and SIGECO. Under the new
organization, Vectren's power generation and wholesale power
marketing functions will transact business under the name Vectren
Power Supply.

"We will continue to provide the trusted customer service we have
historically provided, now under the Vectren Energy Delivery
name," said Niel Ellerbrook, Vectren Corporation's chairman and
chief executive officer.  "Our industry continues to experience
rapid change. As a result, our customers are likely to see
additional changes over time.  We are positioning the company to
respond to the changing market place with competitively priced
services and a single name that all of our customers will know."

By creating a common name, Vectren Energy Delivery is able to
generate efficiencies and better serve customers as illustrated
by the customer contact center scheduled to open later this year
in Evansville.  Upon completion, the center will allow Vectren
Energy Delivery to bring together all customer contact resources
in a single facility using the latest in telecommunications
technology. It will include an automated voice response system
for handling more calls during emergencies as well as improved
Internet and traditional telephone and mail communications.

Indiana Gas and SIGECO have long been known for providing their
customers with dependable, quality service. The Vectren name
reflects these same attributes while achieving wide-spread
recognition as a regional provider of numerous energy services
and related technology solutions to customers throughout the
Midwest.

The new name is part of our effort to make sure we are the
company our customers trust and rely on - the company they'll
choose for their future energy needs. It is part of our promise
to work to secure safe, cost-competitive energy to help ensure
the success of our customers and the communities in which we
operate.

The Indiana Utility Regulatory Commission has approved the name
Vectren Energy Delivery of Indiana for use by both Indiana Gas
and SIGECO, though they will continue to be separate legal
subsidiaries of Vectren Corporation. The new name will be used by
the distribution operations of both subsidiaries.

Vectren Corporation is an energy and applied technology holding
company headquartered in Evansville, Indiana. Vectren's energy
delivery subsidiaries provide gas and/or electricity to
approximately one million customers in adjoining service
territories that cover nearly two-thirds of Indiana and 16
counties in west central Ohio. Vectren's non-regulated
subsidiaries and affiliates provide energy-related products and
services, fiber-optic based communications services, and utility
related services, including materials management, debt
collections, underground pipeline construction and repair,
underground facilities locating and meter reading services to
customers throughout the surrounding region. To learn more about
Vectren, visit www.vectren.com .