EXHIBIT 99.1

Item 1.  BUSINESS

SIGCORP and SIGECO

     This discussion  includes  forward looking  statements based on information
currently available to management.  Such statements are subject to certain risks
and uncertainties.  These statements  typically contain, but are not limited to,
the terms "anticipate", "expect", "potential", "estimate" and similar words, and
actual  results may differ  materially  due to the speed and nature of increased
competition and deregulation in the electric and gas utility industry,  economic
or weather conditions affecting future sales and margins, changes in markets for
energy  services,  changing  energy market  prices,  legislative  and regulatory
changes  including  revised  environmental  requirements,  impacts  of Year 2000
issues,  availability  and cost of  capital,  the pending  merger  with  Indiana
Energy, Inc. and other similar factors.

ORGANIZATION

     SIGCORP,  Inc. (SIGCORP) is a holding company incorporated October 19, 1994
under  the  laws of the  State  of  Indiana.  SIGCORP  has  eleven  wholly-owned
subsidiaries:  Southern  Indiana Gas and Electric  Company  (SIGECO),  a gas and
electric utility, and ten nonregulated subsidiaries.

     On December 20, 1994,  SIGECO's  Board of  Directors  authorized  the steps
required for a corporate  reorganization in which a holding company would become
the parent of SIGECO.  SIGECO's  shareholders  approved  the  reorganization  at
SIGECO's  March 28,  1995 annual  meeting,  and  approval by the Federal  Energy
Regulatory  Commission and the  Securities  and Exchange  Commission was granted
November 7, 1995 and December 14, 1995, respectively.

     Effective  January 1, 1996, the new holding  company,  SIGCORP,  became the
parent of SIGECO,  which accounts for over 80% of SIGCORP's net income, and four
of SIGECO's former wholly-owned nonregulated subsidiaries: Energy Systems Group,
Inc., Southern Indiana Minerals,  Inc.,  Southern Indiana  Properties,  Inc. and
ComSource,  Inc. All of the shares of SIGECO's  common stock were exchanged on a
one-for-one  basis for shares of SIGCORP,  while all of SIGECO's debt securities
and all of its  outstanding  shares of preferred  stock  remained  securities of
SIGECO and were unaffected.  (See "Nonregulated Subsidiaries - General" and Note
1 of the  Notes to  Consolidated  Financial  Statements,  page 48,  for  further
discussion.)

     The  reorganization  was in response to the changes created in the electric
industry by the Energy Policy Act of 1992 and the need to respond quickly to the
more competitive business environment.  The new structure buffers SIGECO and its
customers from the effects of pursuing nonregulated opportunities while allowing
SIGCORP to engage in closely related, but historically nonregulated, businesses.
Providing gas and electric  utility service to customers  through SIGECO remains
the core business and primary focus of SIGCORP.

     On June 14,  1999,  SIGCORP  announced  an  agreement to merge with Indiana
Energy,  Inc.  (IEI) in an all-stock  pooling  transaction  through  which a new
holding company, Vectren Corporation,  would be formed. (See "Pending Merger" in
Item 7,  MANAGEMENT'S  DISCUSSION  AND  ANALYSIS  OF  RESULTS OF  OPERATION  AND
FINANCIAL CONDITION,  Page 18, and Note 1 of the Notes to Consolidated Financial
Statements, page 48, for further discussion.)

SIGECO - GENERAL

     SIGECO is an operating public utility incorporated June 10, 1912, under the
laws  of  the  State  of  Indiana,  engaged  in  the  generation,  transmission,
distribution and sale of electric energy and the purchase of natural gas and its
transportation,  distribution  and  sale in a  service  area  which  covers  ten
counties in southwestern Indiana.

     Electric  service is supplied  directly to Evansville  and 74 other cities,
towns and communities,  and adjacent rural areas.  Wholesale electric service is
supplied to an additional eight communities. At December 31, 1999, SIGECO served
126,605  electric  customers  and was also  obligated  to provide for firm power
commitments  to the City of Jasper,  Indiana  and to maintain  spinning  reserve
margin  requirements  under an agreement with the East Central Area  Reliability
Group (ECAR).

         At December 31, 1999,  SIGECO supplied gas service to 109,388 customers
in Evansville and 64 other nearby  communities and their  environs.  Since 1986,
SIGECO  has  purchased  its  natural  gas  supply   requirements  from  numerous
suppliers. During 1999, thirty-two suppliers were used.

     The  principal  industries  served by SIGECO  include  polycarbonate  resin
(Lexan) and plastic products,  aluminum  smelting and recycling,  aluminum sheet
products,   automotive  assembly,  steel  finishing,   appliance  manufacturing,
pharmaceutical  and nutritional  products,  automotive  glass,  gasoline and oil
products and coal mining.

     The only  property  SIGECO owns outside of Indiana is  approximately  eight
miles of a 138,000 volt electric  transmission line which is located in Kentucky
and which interconnects with Louisville Gas and Electric Company's  transmission
system at Cloverport,  Kentucky.  The original cost of the property is less than
$425,000. SIGECO does not distribute any electric energy in Kentucky.






SIGECO - LINES OF BUSINESS

     The  percentages of operating  revenues and operating  income before income
taxes  attributable  to the electric and gas  operations  of SIGECO for the five
years ended December 31, 1999, were as follows:

                                             Year Ended December 31,
                                    1995    1996    1997   1998    1999
Operating Revenues:
Electric                            81.3%   74.2%   76.1%  81.7%   81.8%
Gas                                 18.7    25.8    23.9   18.3    18.2

Operating Income Before Income
Taxes:

Electric                            96.4%   89.0%   87.1%  90.8%   91.7%
Gas                                  3.6    11.0    12.9    9.2     8.3

     Reference  is  made  to  Note  9 of the  Notes  to  Consolidated  Financial
Statements, page 48, for Segments of Business data.

SIGECO - ELECTRIC BUSINESS

     SIGECO supplies  electric service to 126,605  customers,  including 110,064
residential,  16,344  commercial,  173 industrial,  19 public street and highway
lighting, and five municipal customers.

     SIGECO's installed generating capacity as of December 31, 1999 was rated at
1,256,000  kilowatts (Kw).  Coal-fired  generating units provide 1,041,000 Kw of
capacity and gas or oil-fired turbines used for peaking or emergency  conditions
provide 215,000 Kw.

     In addition,  SIGECO has interconnections  with Louisville Gas and Electric
Company,  Cinergy Services,  Inc.,  Indianapolis Power & Light Company,  Hoosier
Energy Rural Electric Cooperative, Inc., Big Rivers Electric Corporation, Wabash
Valley  Power  Association,  and the City of  Jasper,  providing  an  ability to
simultaneously interchange approximately 750,000 Kw.

     Record-breaking  peak  conditions  occurred on July 6, 1999,  when SIGECO's
system summer peak load reached 1,140,800 Kw. SIGECO's total load, including its
firm power  commitments  to the City of Jasper,  Indiana,  for each of the years
1995 through 1999 at the time of the system summer peak, and the related reserve
margin, are presented below.





Date of Summer     8-17-95    8-21-96     7-14-97    7-21-98     7-6-99
Peak Load

Company System
Peak Load (Kw)
                   1,021,000    999,800   1,022,700  1,082,500   1,140,800

Firm Power
Commitments at
Peak                  60,800     53,500      63,700     46,800      58,700
Total at Peak      1,081,800  1,053,300   1,086,400  1,129,300   1,199,500

Total Generating
Capability (Kw)    1,236,000  1,236,000   1,236,000  1,256,000   1,256,000
Reserve Margin at
Peak                     14%        17%         14%        11%          5%

The winter peak load of the  1998-1999  season of 834,200 Kw occurred on January
5, 1999 and was 9.3%  higher  than the  previous  winter peak load of 763,200 Kw
which occurred on March 11, 1998.

     SIGECO,  primarily as agent of Alcoa Generating Corporation (AGC), operates
the  Warrick  Generating  Station,  a  coal-fired  steam  electric  plant  which
interconnects  with SIGECO's system and provides power for the Aluminum  Company
of  America's   Warrick   Operations,   which  includes  aluminum  smelting  and
fabricating  facilities.  Of the four turbine  generators at the plant,  Warrick
Units 1, 2 and 3, with a capacity of 144,000 Kw each, are owned by AGC.  Warrick
Unit 4, with a rated  capacity  of  270,000  Kw,  is owned by SIGECO  and AGC as
tenants in common,  each having shared equally in the cost of  construction  and
sharing equally in the cost of operation and in the output.

     SIGECO (a summer  peaking  utility)  has an agreement  with Hoosier  Energy
Rural Electric  Cooperative,  Inc. (Hoosier Energy) for the sale of firm peaking
power to Hoosier  Energy  during  the annual  winter  heating  season  (November
15-March  15). The contract  made  available 222 Mw during the 1999- 2000 winter
season, and was terminated March 15, 2000.

     Electric  generation  for 1999 was fueled by coal  (98.8%)  and natural gas
(1.2%). Oil was used only for testing of gas/oil-fired peaking units.

     Historically,  coal for SIGECO's  coal-fired  generating  stations has been
purchased  from  operators of nearby  Indiana strip mines  pursuant to long-term
contracts.  Over the past several  years,  SIGECO has been actively  involved in
intensive  contract  negotiations  and legal  actions  to reduce  coal costs and
thereby  lower  electric  rates.  The initial  long-term  coal  contracts  to be
renegotiated  and eventually  bought out were those  supplying  SIGECO's  Culley
Generating Station and Warrick Unit 4. Net savings from these actions, estimated
to total  approximately  $59  million,  were passed  back to  SIGECO's  electric
customers through the fuel adjustment  clause.  The coal used in these plants is
blended,  when necessary,  to meet  specifications  set in conformance  with the
requirements of the Indiana State  Implementation Plan for sulfur dioxide issued
under  federal  laws  regulating  air  quality  (Clean  Air Act).  Approximately
1,615,000 tons of coal were used during 1999 in the generation of electricity at
the Culley  Station and Warrick Unit 4 with the majority of the coal used at the
Culley  Station  supplied  by  SIGCORP's  subsidiary,  SIGCORP  Fuels,  Inc (see
"Nonregulated  Subsidiaries  -  General",  page  8).  Culley  Units 2 and 3 were
equipped  with flue gas  desulfurization  equipment as part of the Clean Air Act
Compliance Plan. (See "Environmental Matters", page 11, for further discussion.)
SIGECO's  remaining  long-term  contract coal supplier  supplied the A. B. Brown
Generating  Station.  On April 10, 1995,  SIGECO  reached an agreement with this
coal  supplier,  effective  July 16, 1995,  to buy out the remainder of SIGECO's
contractual  obligations,  enabling it to acquire lower-priced spot market coal.
SIGECO estimates the total savings in coal costs resulting from the buyout,  net
of total buyout costs,  approximated  $58 million through December 31, 1998, the
term  of the  original  contract.  The  net  savings  from  this  coal  contract
renegotiation  have been  passed  back to  SIGECO's  retail  and firm  wholesale
electric customers through the fuel adjustment clause. The amount of coal burned
at A. B. Brown Generating Station during 1999 was approximately  1,372,000 tons.
Both units at the generating station are equipped with flue gas  desulfurization
equipment  so that  coal with a higher  sulfur  content  can be used.  There are
substantial  coal  reserves in the  southern  Indiana  area.  The  average  cost
(including contract buyout costs) of all coal consumed in generating  electrical
energy for the years 1995 through 1999 was as follows:




Average Cost

                Average Cost   Average Cost  Per Kwh
        Year    Per Ton        Per MMBTU     (In Mills)
        1995      30.02           1.33       14.10
        1996      26.01           1.16       12.40
        1997      20.75           0.91        9.80
        1998      21.34           0.94        9.97
        1999      21.88           0.96       10.13


     The Broadway  Turbine Units 1 and 2, Northeast Gas Turbines and A. B. Brown
Gas Turbine, when used for peaking,  reserve or emergency purposes,  use natural
gas for fuel.  Number 2 fuel oil can also be used in the Broadway  Turbine Units
and the Brown Gas Turbine.

     All metered  electric  rates contain a provision for  adjustment in charges
for  electric  energy to reflect  changes in the cost of fuel and the net energy
cost of purchased power through the operation of a fuel adjustment clause unless
certain criteria  contained in the regulations are not met.  Effective April 26,
1995, the principal  restriction to recovery of fuel cost increases is that such
recovery  is not  allowed to the  extent  that  total  operating  income for the
60-month  period  including the  twelve-month  period  provided in the fuel cost
adjustment  filing exceeds the total operating income  authorized by the Indiana
Utility Regulatory  Commission (IURC) during the same 60-month period.  Prior to
April 26, 1995,  the operating  income test period was the  twelve-month  period
provided  in  the  fuel  cost  adjustment  filing.  During  1997-1999,   neither
restriction  affected SIGECO. As prescribed by order of the IURC, the adjustment
factor is calculated based on the estimated cost of fuel and the net energy cost
of purchased power in a designated future quarter.  The order also provides that
any over- or underrecovery caused by variances between estimated and actual cost
in a  given  quarter  will  be  included  in  the  second  succeeding  quarter's
adjustment factor. This continuous  reconciliation of estimated incremental fuel
costs  billed  with  actual  incremental  fuel costs  incurred  closely  matches
revenues  to  expenses.  On August 18,  1999,  the IURC  issued a generic  order
establishing new guidelines for the recovery of the net energy cost of purchased
power  through  fuel  adjustment  clauses.  The order  requires  each utility to
establish a benchmark  which is the utility's  highest  on-system  fuel cost per
kilowatt-hour  during the most recent annual  period.  If the  utility's  weekly
average  purchased power costs were less than the benchmark cost of fuel,  those
costs would be  recoverable  through the fuel clause as "fuel costs  included in
purchased power". If the utility's weekly average purchased power costs exceeded
the "benchmark",  the utility would be required to provide  evidence  supporting
the  reasonableness  of the  costs  incurred.  SIGECO  does not  anticipate  any
limitation of  recoverability  of its  purchased  power costs under this generic
order.  The Office of the Utility  Consumer  Counselor  has appealed the generic
order to the Indiana Court of Appeals.

     SIGECO  participates  in research and development in which the primary goal
is cost savings through the use of new  technologies.  This is accomplished,  in
part,  through the efforts of the Electric Power Research  Institute  (EPRI). In
1999,  SIGECO paid  $1,014,000  to EPRI to help fund  research  and  development
programs such as advanced clean coal burning technology.

     SIGECO is participating  with 14 other electric utility  companies  through
Ohio Valley Electric  Corporation  (OVEC) in arrangements with the United States
Department of Energy (DOE),  to supply the power  requirements  of the DOE plant
near  Portsmouth,  Ohio. The  sponsoring  companies are entitled to receive from
OVEC,  and are  obligated to pay for, any  available  power in excess of the DOE
contract demand.  The proceeds from the sale of power by OVEC are designed to be
sufficient  to meet all of its costs and to  provide  for a return on its common
stock. During 1999, SIGECO's participation in the OVEC arrangements was 1.5%.

     SIGECO  participates  with seven other  utilities  and 31 other  affiliated
groups  located in eight states  comprising  the east central area of the United
States,  in the East Central Area Reliability  group, the purpose of which is to
strengthen the area's electric power supply reliability. Additionally, SIGECO is
one of 14 owners of the Midwest  Independent  System Operator (MISO) which is an
organization  recently  established  to  ensure  the  dependable  and  efficient
transmission  of  electric  energy  between its owner  utilities  located in the
midwestern  United States.  The MISO anticipates an in-service date of June 2001
for its control center and systems.

SIGECO - GAS BUSINESS

     SIGECO supplies natural gas service to 109,388 customers,  including 99,596
residential,  9,576 commercial and 216 industrial customers, through 2,921 miles
of gas transmission and distribution lines.

     SIGECO owns and  operates  three  underground  gas  storage  fields with an
estimated  ready  delivery  from storage of 3.9 million Dth of gas.  Natural gas
purchased  from SIGECO's  suppliers is injected into these storage fields during
periods  of light  demand  which are  typically  periods  of lower  prices.  The
injected gas is then  available to  supplement  the  contracted  volumes  during
periods of peak requirements.  It is estimated that approximately 119,000 Dth of
gas per day can be withdrawn  from the three  storage  fields during peak demand
periods on the system.

     In 1999,  a total of 32  suppliers  sold gas to  SIGECO.  In total,  SIGECO
purchased  12,574,927 Dth in 1999. During 1999,  sixty-one of SIGECO's major gas
customers utilized SIGECO's gas  transportation  program to procure a portion of
their gas supply needs from suppliers  other than SIGECO.  A total of 19,580,081
Dth, 61% of total gas  throughput,  was transported for these major customers in
1999 compared to 17,349,036 Dth  transported in 1998.  SIGECO  receives fees for
the use of its facilities in transporting such gas.

     The all-time record send out occurred during the 1993-1994 winter season on
January 18, 1994, when 247,449 Dth of gas were delivered to SIGECO's  customers.
Of this amount, 97,946 Dth was purchased,  106,558 Dth was taken out of SIGECO's
three  underground  storage fields,  and 42,945 Dth was transported to customers
under transportation  agreements.  The 1998-1999 winter season peak day send out
was 215,284 Dth on January 14, 1999.

     The average cost per Dth of gas  purchased  by SIGECO  during the past five
calendar years was as follows:  1995,  $2.48;  1996, $3.47;  1997, $3.25;  1998,
$3.22; and 1999, $3.10.

     The State of Indiana  has  established  procedures  which  result in SIGECO
passing on to its customers  the changes in the cost of gas sold unless  certain
criteria contained in the regulations are not met. Effective April 26, 1995, the
principal restriction to recovery of gas cost increases is that such recovery is
not allowed to the extent that total  operating  income for the 60-month  period
including the  twelve-month  period provided in the gas cost  adjustment  filing
exceeds  the total  operating  income  authorized  by the IURC  during  the same
60-month  period.  Prior to April 26, 1995, the operating income test period was
the  twelve-month  period  provided in the gas cost  adjustment  filing.  During
1997-1999, neither restriction affected SIGECO.  Additionally,  these procedures
provide for  scheduled  quarterly  filings and IURC  hearings to  establish  the
amount of price adjustments for a designated future quarter. The procedures also
provide for inclusion in a later quarter of any variances  between estimated and
actual costs of gas sold in a given quarter.  This  reconciliation  process with
regard to changes in the cost of gas sold closely matches  revenues to expenses.
SIGECO's rate  structure  does not include a weather  normalization-type  clause
whereby a utility  would be  authorized  to  recover  the gross  margin on sales
established  in its  last  general  rate  case,  regardless  of  actual  weather
patterns.

     Natural  gas  research is  supported  by SIGECO  through  the Gas  Research
Institute in cooperation with the American Gas Association. Since passage of the
Natural Gas Act of 1978, a major effort has gone into promoting gas  exploration
by both  conventional  and  unconventional  sources.  Efforts  continue  through
various projects to extract gas from tight gas sands,  shale and coal.  Research
is also directed toward the areas of conservation, safety and the environment.

SIGCORP

NONREGULATED SUBSIDIARIES - GENERAL

     In addition to its wholly-owned utility subsidiary,SIGECO,  SIGCORP has ten
wholly-owned  nonutility  subsidiaries,  of which nine were  active at  December
1999.  Southern Indiana  Properties,  Inc., formed in 1986, invests in leveraged
leases of real estate and equipment, real estate partnerships and joint ventures
and private placement subordinated debt instruments. Energy Systems Group, Inc.,
incorporated  in April 1994, has a one-third  ownership in Energy Systems Group,
LLC, an  energy-related  performance  contracting  firm serving  industrial  and
commercial customers. Southern Indiana Minerals, Inc., incorporated in May 1994,
processes and markets coal  combustion  by-products.  SIGCORP  Energy  Services,
Inc., incorporated in October 1996, was established to market energy and related
services and  currently  provides  natural  gas,  pipeline  management,  storage
service and other natural  gas-related  services to SIGECO and other  customers.
SIGCORP  Capital,  Inc.,  also  incorporated  in October  1996,  is the  primary
financing vehicle for SIGCORP's nonregulated subsidiaries.  SIGCORP Fuels, Inc.,
incorporated  in  December  1996,  was  formed to own and  operate  coal  mining
properties  and to  provide  coal and  related  services  to  SIGECO  and  other
customers.  SIGCORP Power Marketing,  Inc., also  incorporated in December 1996,
but not yet active, was formed to procure electric power supplies for SIGECO and
other customers,  and will market SIGECO's excess electric generation  capacity.
SIGCORP Communications  Services,  Inc., incorporated in August 1997, was formed
to undertake  telecommunications-related  strategic initiatives. SIGECO Advanced
Communications,  Inc.  (Advanced  Communications),  incorporated  in April 1998,
holds SIGCORP's  investment in Utilicom Holdings,  LLC, the newly formed holding
company for Utilicom  Networks,  Inc., and in SIGECOM Holdings,  Inc., the newly
formed holding company of SIGECOM,  LLC.  Advanced  Communications  and Utilicom
Networks,  Inc.  are  partners in SIGECOM,  LLC,  an  integrated  communications
provider  serving the  Evansville,  Indiana market with an 860-mile  fiber-optic
based network.  (See Note 12 of the Notes to Consolidated  Financial Statements,
page  48,  for   discussion   of  the   restructured   investment   at  Advanced
Communications.)  SIGCORP Environmental Services, Inc., incorporated in November
1998,  holds  SIGCORP's  investment  in Air Quality  Services,  a joint  venture
created to provide air quality  monitoring and testing  services to industry and
utilities.  (See "SIGECO Advanced Communications,  Inc." in Item 7, MANAGEMENT'S
DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS AND FINANCIAL  CONDITION,  page
18, and Note 1 of the Notes to Consolidated  Financial Statements,  page 48, for
further discussion.)


SIGCORP and SIGECO

PERSONNEL

     The holding company, SIGCORP, had one employee as of December 31, 1999.

     SIGECO's  network of gas and  electric  operations  directly  involves  775
employees with an additional 146 employed at Alcoa's Warrick Power Plant.  Alcoa
reimburses SIGECO for the entire cost of the payroll and associated  benefits at
the Warrick  Plant,  with the  exception  of  one-half of the payroll  costs and
benefits  allocated  to Warrick  Unit 4,  which is  jointly  owned by SIGECO and
Alcoa.  The total payroll and benefits for SIGECO  employees in 1999  (including
all Warrick Plant  employees)  were $62.7  million.  In 1998,  total payroll and
benefits were $55.8 million.

     On July 1, 1998,  SIGECO  signed a new two-year  contract with Local 702 of
the International  Brotherhood of Electrical Workers.  The contract provides for
annual wage  increases of 3.5% and 3.0%.  Improvements  in  healthcare  coverage
costs and pension plan benefits are also included.  On October 4, 1999, SIGECO's
Hoosier  Division  signed a new two-year labor  contract,  ending  September 23,
2001, with Local 135 of the Teamsters, Chauffeurs, Warehousemen and Helpers. The
contract  provides for annual wage  increases of 3% and  improvements  in health
care coverage costs and pension and other benefits.

     As of December 31, 1999, Southern Indiana Properties, Inc. had 2 employees;
Southern Indiana Minerals,  Inc. had 7 employees;  SIGCORP Energy Services, Inc.
had 21 employees; SIGCORP Communications,  Inc. had 28 employees; SIGCORP Fuels,
Inc. had 3 employees; and Sigeco Advanced  Communications,  Inc. had 1 employee.
Energy  Systems  Group,  Inc.,  SIGCORP  Capital,  Inc.,  SIGCORP  Environmental
Services, Inc. and SIGCORP Power Marketing, Inc. had no employees as of December
31,  1999.  There  were no labor  organizations  representing  employees  of the
nonregulated entities.

CONSTRUCTION PROGRAM AND FINANCING

     SIGCORP's demand for capital is primarily related to SIGECO's  construction
of utility plant and  equipment  necessary to meet  customers'  electric and gas
energy needs, as well as environmental  compliance  requirements.  Additionally,
SIGCORP  may   periodically   make  capital   investments  in  its  nonregulated
operations.  See  "Liquidity  and  Capital  Resources"  in Item 7,  MANAGEMENT'S
DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS AND FINANCIAL  CONDITION,  page
18, for discussion of construction expenditures and financing during 1999.

     For 2000, SIGECO's construction  expenditures are presently estimated to be
$52.0 million.  Expenditures in the power  production area are expected to total
$18.8 million.  The balance of the 2000  construction  program consists of $17.0
million for additions and improvements to other electric system facilities, $8.9
million for  additions  and  improvements  to the gas system and $7.3 million to
complete several strategic information systems and for common utility equipment.

     In keeping  with  SIGECO's  objective  to bring new  facilities  on line as
needed,  the  construction  program  and amount of  scheduled  expenditures  are
reviewed  periodically  to factor in load growth  projections,  system  planning
requirements,  environmental compliance and other considerations. As a result of
this program of periodic  review,  construction  expenditures  may change in the
future from the program as presented herein.

     Currently it is estimated  that  SIGECO's  construction  expenditures  will
total  about  $357   million,   including   allowance   for  funds  used  during
construction, for the years 2000-2004 as follows: 2000 - $52 million; 2001 - $87
million;  2002 - $113 million;  2003 - $62 million; and 2004 - $43 million. This
construction  program includes $97 million for construction  expenditures during
2000-2003  that  SIGECO  estimates  as the  maximum  amount if it is required to
comply  with new United  States  Environmental  Protection  Agency  (USEPA)  air
quality standards discussed under  "Environmental  Matters," and $32 million for
the  construction  of a gas- fired  electric  generation  peaking  unit in 2002.
Because SIGECO plans to lease the proposed  cogeneration  facility  discussed in
"Rate and Regulatory Matters" in Item 7, MANAGEMENT'S DISCUSSION AND ANALYSIS OF
RESULTS OF OPERATIONS AND FINANCIAL CONDITION, page 18, its cost is not included
in the projected five-year construction requirements.  While SIGCORP expects the
majority of SIGECO's  construction and other capital requirements to be provided
by internally generated funds, external financing requirements of $50-70 million
of  medium  term debt are  anticipated  and will be used  primarily  to retire a
similar amount of short-term debt.

REGULATION

     Because of its  ownership  of SIGECO,  SIGCORP  is a "Holding  Company"  as
defined by the Public Utility Holding Company Act of 1935 (PUHCA).  Furthermore,
SIGECO is also a "Holding Company" as defined by PUHCA due to SIGECO's ownership
of 33% of Community Natural Gas Company. Both SIGCORP and SIGECO are exempt from
regulation under the PUHCA except for the provisions of Section  9(A)(2),  which
pertain to acquisitions of other utilities.

     Operating as a public utility under the laws of Indiana,  SIGECO is subject
to  regulation by the Indiana  Utility  Regulatory  Commission  (IURC) as to its
rates, services, accounts,  depreciation,  issuance of securities,  acquisitions
and sale of utility properties or securities,  and in other respects as provided
by the laws of Indiana. See subsequent discussion under "Competition"  regarding
the restructuring of the electric utility industry and possible  deregulation of
certain segments or functions of electric utility service.

     In  addition,  SIGECO  is  subject  to  regulation  by the  Federal  Energy
Regulatory  Commission  (FERC)  with  respect  to the sale and  transmission  of
electric  energy in  interstate  commerce,  its  rates  for  sales  for  resale,
interconnection  agreements  with other  utilities,  the  classification  of its
accounts  and  the  acquisition   and  sale  of  utility   property  in  certain
circumstances as provided by the Federal Power Act.

     See "SIGECO-Electric  Business",  page 5 and "SIGECO-Gas Business",  page 7
for further discussion regarding regulatory matters.

     SIGECO is subject to regulations issued pursuant to federal and state laws,
pertaining to air and water pollution control. The economic impact of compliance
with these laws and  regulations  is  substantial,  as discussed in detail under
"Environmental  Matters." SIGECO is also subject to multiple  regulations issued
by  both  federal  and  state  commissions  under  the  Federal  Public  Utility
Regulatory Policies Act of 1978.

COMPETITION

     As part of its  efforts  to develop a national  energy  strategy,  Congress
amended PUHCA and the Federal  Power Act by enacting the National  Energy Policy
Act of 1992 (NEPA), which will affect the traditional  structure of the electric
utility industry.  As a result of changes brought about by NEPA, SIGECO competes
with other  utilities  and  wholesale  generators  for sales of  electricity  to
existing wholesale customers of SIGECO and other potential wholesale  customers.
SIGECO  currently  competes with other utilities in connection with  intersystem
bulk power sales.  SIGECO does not presently  compete for retail electric or gas
customers with the other utilities within its assigned  service areas.  However,
various federal and state legislators,  including members of the Indiana General
Assembly,  have introduced proposed  legislation  addressing retail wheeling and
other related issues.  Under the proposed  legislation,  the electric generation
function (and the marketing  function under some proposals)  would be subject to
competition and  deregulated,  while other  functions such as  transmitting  and
distributing power, would continue to be regulated. See "Competition" in Item 7,
MANAGEMENT'S  DISCUSSION  AND ANALYSIS OF RESULTS OF  OPERATIONS  AND  FINANCIAL
CONDITION,  page 18, for  discussion of the major changes  effected by NEPA; the
status  of  related  Indiana   legislation;   and  further   discussion  of  the
deregulation of the electric  industry and possible further  deregulation of the
natural gas industry.

     Some of SIGECO's gas customers have, or in the future could acquire, access
to energy sources other than those available  through SIGECO.  (See  "SIGECO-Gas
Business",  page 7, for  discussion  of gas  transportation.)  Although  federal
policy  allows  bypass of a local  distribution  company,  Indiana law disallows
bypass in most cases.  SIGECO is currently  litigating  two such attempts in the
Indiana  regulatory  arena and before the FERC.  (See  "Competition"  in Item 7,
MANAGEMENT'S  DISCUSSION  AND ANALYSIS OF RESULTS OF  OPERATIONS  AND  FINANCIAL
CONDITION,   page  18  for  discussion  of  the  bypass   attempts  and  related
litigation.)

     There continues to be interest in research on the development of sources of
energy  other than those in general  use.  Such  competition  from other  energy
sources has not been a material factor to SIGECO in the past.  SIGECO is unable,
however,  to  predict  the  extent  of this  competition  in the  future  or its
potential effect on SIGECO's operations.

ENVIRONMENTAL MATTERS

     SIGECO is subject to federal,  state and local  regulations with respect to
environmental matters,  principally air, solid waste and water quality. Pursuant
to environmental regulations, SIGECO is required to obtain operating permits for
the  electric  generating  plants  which it owns or  operates  and  construction
permits  for any new  plants  which  it  might  propose  to  build.  Regulations
concerning  air quality  establish  standards  with  respect to both ambient air
quality and emissions from SIGECO's  facilities,  including  particulate matter,
sulfur  dioxide  and  nitrogen  oxides.  Regulations  concerning  water  quality
establish  standards  relating to intake and  discharge  of water from  SIGECO's
facilities,  including  water used for cooling  purposes in electric  generating
facilities. Because of the scope and complexity of these regulations,  SIGECO is
unable  to  predict  the  ultimate  effect  of such  regulations  on its  future
operations,  nor is it possible to predict what other regulations may be adopted
in the future.  SIGECO intends to comply with all applicable valid  governmental
regulations,  but will contest any  regulation  it deems to be  unreasonable  or
impossible to comply with or which is otherwise invalid.

     The implementation of federal and state regulations designed to protect the
environment,  including those  hereinafter  referred to, involves or may involve
review,  certification  or issuance  of permits by federal  and state  agencies.
Compliance  with such  regulations  may limit or prevent  certain  operations or
substantially  increase the cost of operation of existing and future  generating
installations,  as well as  seriously  delay  or  increase  the  cost of  future
construction.  Such compliance may also require  investments above those amounts
stated under "Construction Program and Financing", page 9.

     All existing SIGECO electric  generation  facilities have operating permits
from the Indiana Department of Environmental Management or other agencies having
jurisdiction.  In order  to  secure  approval  for  these  permits,  SIGECO  had
installed  electrostatic  precipitators on all coal-fired units and is operating
flue gas desulfurization  (FGD) units to remove sulfur dioxide from the flue gas
at its A. B. Brown  Units 1 and 2  generating  facilities.  The FGD units at the
Brown Station  remove most of the sulfur  dioxide from the flue gas emissions by
way of a scrubbing process, thereby allowing SIGECO to burn high sulfur southern
Indiana coal at the station.

     In October 1990, the U.S.  Congress  adopted major revisions to the Federal
Clean Air Act. The revisions  require  reduction in emissions of sulfur  dioxide
(SO2) and nitrogen oxide (NOX) from coal-burning electric generating facilities,
including  those  owned  and  operated  by  SIGECO.  Two of  SIGECO's  principal
coal-fired  facilities  (A. B. Brown Units 1 and 2,  totaling  500  megawatts of
capacity) were equipped with sulfur dioxide  removal  equipment  (scrubbers) and
were not severely  affected by the new  legislation.  However,  523 megawatts of
SIGECO's coal-fired generating capacity were significantly impacted by the lower
emission requirements. SIGECO was required to reduce total emissions from Culley
Unit 3, Warrick Unit 4 and Culley Unit 2 by approximately 50% to 2.5 lb/MMBTU by
January 1995 (Phase I) and to 1.2  lb/MMBTU by January  2000 (Phase II).  SIGECO
met  all of the  Phase  I  emission  requirements  and  some  of  the  Phase  II
requirements  by  January  1995  with the  implementation  of its  Clean Air Act
Compliance  Plan which  includes  equipping  Culley  Units 2 and 3 with a sulfur
dioxide  scrubber,  among  other  provisions.  Unit  1  at  Culley  Station  (46
megawatts)  was also subject to the 1.2 lb/MMBTU  restriction  by January  2000.
With the addition of the scrubber at the Culley  generating  station,  SIGECO is
surpassing  the  minimum  compliance  requirements  of  Phase  I  and  is  using
"overcompliance  allowances" and fuel blending (with low sulfur coal) strategies
to help meet the stricter Phase II requirements  effective  January 2000. SIGECO
is  purchasing  additional  allowances to fully meet Phase II  requirements.  No
material capital expenditures are anticipated to meet Phase II requirements, and
thus,  none are reflected in the  projected  construction  requirements  for the
years  2000-2004  discussed  in  "Construction  Program  and  Financing"  or  in
"Liquidity  and  Capital  Resources"  in Item  7,  MANAGEMENT'S  DISCUSSION  AND
ANALYSIS OF RESULTS OF OPERATIONS AND FINANCIAL CONDITION, page 18.

     Current  regulatory  policy  allows for the recovery  through  rates of all
authorized and approved pollution control expenditures.  Refer to "Environmental
Matters"  in  Item  7,  MANAGEMENT'S  DISCUSSION  AND  ANALYSIS  OF  RESULTS  OF
OPERATIONS AND FINANCIAL CONDITION,  page 18, for further discussion of SIGECO's
Clean Air Act Compliance  Plan, and the associated  costs.  SIGECO filed Title V
(of the 1990  Amendments to the Federal Clean Air Act) permit  applications  for
all of its applicable  generation  facilities during the fourth quarter of 1996.
The applications  have been approved for completeness and are being processed by
the Indiana Department of Environmental Management.

Warrick

     Unit 4 (50% owned by  SIGECO)  is  covered  by Title V permit  applications
filed by Alcoa Generating Corporation,  majority owner of the Warrick Generating
Station.

     In December 1996 and January 1997,  the USEPA issued  proposed  regulations
regarding  new national  ambient air quality  standards  for regional  ozone and
particulate  matter  concentration  levels.  In July 1997,  the USEPA issued its
final rule which revised the national  ambient air quality standard for ozone by
setting a lower  concentration  limit and changing the averaging period from one
hour to eight hours. There remains much uncertainty as to the extent that SIGECO
would be affected by this ruling.  Refer to  "Environmental  Matters" in Item 7,
MANAGEMENT'S  DISCUSSION  AND ANALYSIS OF RESULTS OF  OPERATIONS  AND  FINANCIAL
CONDITION, page 18, for discussion of this new ruling and related issues and the
estimated possible costs to comply with reductions if ultimately required.

     Refer to Item 3, LEGAL PROCEEDINGS, Page 14, and to "Environmental Matters"
in Item 7,  MANAGEMENT'S  DISCUSSION  AND ANALYSIS OF RESULTS OF OPERATIONS  AND
FINANCIAL  CONDITION,  page 18 for  discussion  of the USEPA's  lawsuit  against
SIGECO for alleged violations of the Clean Air Act.

     In connection with the use of sulfur dioxide removal equipment at the A. B.
Brown  Generating  Station,  SIGECO  operates  a solid  waste  landfill  for the
disposal of  approximately  200,000 tons of residue per year from the  scrubbing
process. Application for renewal of the landfill operating permit was filed with
the Indiana Department of Environmental  Management (IDEM) in August 1996, which
has not yet been acted upon.  The  existing  permit will remain in effect  until
action  is taken by IDEM on the  renewal  application.  SIGECO  also has a solid
waste  landfill  available  for the  disposal  of the  gypsum  by-product  being
produced by the new sulfur dioxide  scrubber at the Culley  Generating  Station.
SIGECO was granted a five-year  operating  permit for the landfill in June 1995,
but  anticipates  using this  landfill only when the gypsum by- product does not
meet  contract  specifications  for its sale to a wallboard  manufacturer.  Such
utilization has not been necessary, to date.

     Under the Federal Water  Pollution  Control Act of 1972 and Indiana law and
regulations,  SIGECO is required to obtain  permits to discharge  effluents from
its existing  generating  stations  into the  navigable  waterways of the United
States.  The  State of  Indiana  has  received  authorization  from the USEPA to
administer  the federal  discharge  permits  program in Indiana.  Variances from
effluent  limitations  may be granted by permit on a plant-by- plant basis where
the  utility can  establish  the  limitations  are not  necessary  to assure the
protection  of aquatic  life and wildlife in and on the body of water into which
the  discharge  is to be  made.  SIGECO  has  been  granted  National  Pollution
Discharge Elimination System (NPDES) permits covering  miscellaneous waste water
and thermal  discharges for all its generating  facilities to which the NPDES is
applicable,  namely the Culley Station, A. B. Brown Station and Broadway Station
(gas  turbines).   As  majority  owner  of  Warrick  Generating  Station,  Alcoa
Generating  Corporation  has been  granted an NPDES  permit  for that  facility,
including Warrick Unit 4. Such discharge permits are limited in time and must be
renewed  at  five-year   intervals.   During  1994,   SIGECO  submitted  renewal
applications  for these permits,  which are currently  pending,  as they are for
most  industries.  The  existing  permits  will remain in effect until action is
taken by IDEM on the renewal  applications.  SIGECO  anticipates  renewal of the
permits  by  IDEM.  At  present,  there  are no  known  enforcement  proceedings
concerning water quality pending or threatened against SIGECO.





                Age at
Name           12/31/99   Positions Held During Past     Dates
                          Five Years

R. G. Reherman    64      Chairman of the Board of
                          Directors,
                          and Chief Executive            May 1999 -
                          Officer of SIGCORP             Present
                          Chairman of the Board of
                          Directors,
                          President and Chief Executive
                          Officer of SIGCORP             Jan 1996 -
                                                         April 1999
                          Chairman of the Board of
                          Directors of SIGECO            Sept 1997 -
                                                         Present

                          Chairman of the Board
                          of Directors,
                          President and Chief Executive
                          Officer of SIGECO              *- Sept 1997

A. E. Goebel      52      President and Chief Operating
                          Officer of SIGCORP;
                          Chief Executive
                          Officer of SIGECO              May 1999- Present
                          Executive Vice President       Sept 1997 -
                          of SIGCORP                      April 1999
                          Secretary and Treasurer        Jan 1996 -
                          of SIGCORP                      Sept 1997
                          President and Chief
                          Executive Officer              Sept 1997-
                          of SIGECO                       April 1999
                          Senior Vice President, Chief
                          Financial Officer              Oct 1996 -
                          and Secretary of SIGECO         Sept 1997
                          Senior Vice President, Chief
                          Financial Officer,
                          Secretary and Treasurer of     * - Oct 1996
                          SIGECO

J. G. Hurst       56      President and Chief Operating  May 1999 -
                          Officer of SIGECO              Present
                          Executive Vice President and
                          Chief Operating                Sept 1997 -
                          Officer of SIGECO              April 1999
                          Senior Vice President and
                          General Manager
                          of Operations of SIGECO        * - Sept 1997

R. G. Lynch       48      Senior Vice President of
                          Human Resources                Mar 1999 -
                          and Administration of SIGCORP   Present

J. L. Davis       44      Vice President Support         Jan 1999 -
                          Services of SIGECO             Present
                          Vice President of Marketing
                          and Customer
                          Service of SIGECO              * - Dec 1998

W. S. Doty        49      Vice President Energy          Jan 1999 -
                          Delivery of SIGECO             Present
                          Director of Gas Operations     * - Dec 1998
                          of SIGECO

R. G. Jochum      52      Vice President Power Supply    Jan 1999 -
                          of SIGECO                      Present
                          Vice President and Director
                          of Power
                          Production of SIGECO           * - Dec 1998

G. M. McManus     52      Vice President and Director
                          of Governmental
                          Relations of SIGECO            * - Present


 * Indicates positions held at least since 1995.


Item 2.  PROPERTIES

SIGCORP and SIGECO

     SIGCORP  has  no  significant   properties   other  than  common  stock  of
affiliates.

     SIGECO's installed generating capacity as of December 31, 1999 was rated at
1,256,000 Kw. SIGECO's coal-fired  generating  facilities are: the Brown Station
with 500,000 Kw of  capacity,  located in Posey County about eight miles east of
Mt. Vernon, Indiana; the Culley Station with 406,000 Kw of capacity, and Warrick
Unit 4 with  135,000 Kw of  capacity.  Both the Culley and Warrick  Stations are
located in Warrick County near Yankeetown,  Indiana. SIGECO's gas- fired turbine
peaking units are: the 80,000 Kw Brown Gas Turbine located at the Brown Station;
two Broadway Gas Turbines located in Evansville,  Vanderburgh  County,  Indiana,
with a combined  capacity of 115,000 Kw; and two Northeast Gas Turbines  located
northeast of Evansville in Vanderburgh County,  Indiana with a combined capacity
of 20,000 Kw. The Brown and  Broadway  turbines  are also  equipped to burn oil.
Total  capacity  of  SIGECO's  five  gas  turbines  is  215,000  Kw and they are
generally used only for reserve, peaking or emergency purposes due to the higher
per unit cost of generation.

     SIGECO's  transmission  system consists of 820 circuit miles of 138,000 and
69,000 volt lines. The transmission  system also includes 27 substations with an
installed   capacity  of  4,013,590   kilovolt   amperes  (Kva).   The  electric
distribution  system  includes 3,195 pole miles of lower voltage  overhead lines
and  225  trench  miles  of  conduit   containing  1,345  miles  of  underground
distribution  cable.  The  distribution  system also  includes  93  distribution
substations with an installed capacity of 1,833,855 Kva and 49,501  distribution
transformers with an installed capacity of 2,223,537 Kva.

     SIGECO owns and  operates  three  underground  gas  storage  fields with an
estimated ready delivery from storage  capability of 3.9 million Dth of gas. The
Oliver Field, in service since 1954, is located in Posey County,  Indiana, about
13 miles  west of  Evansville.  The Midway  Field is located in Spencer  County,
Indiana,  about 20 miles east of  Evansville  near  Richland,  Indiana,  and was
placed in service in  December  1966.  The third field is the Monroe City Field,
located in Knox County, about 10 miles east of Vincennes, Indiana. The field was
placed in service in 1958.

     SIGECO's gas transmission  system includes 359 miles of transmission mains,
and the gas distribution system includes 2,562 miles of distribution mains.

     SIGECO's properties are subject to the lien of the First Mortgage Indenture
dated as of April 1, 1932 between SIGECO and Bankers Trust Company, New York, as
Trustee, as supplemented by various  supplemental  indentures,  all of which are
exhibits to this report and collectively referred to as the "Mortgage".

     Subsidiaries  other than SIGECO have no significant  properties  other than
the  ownership  and operation of coal mining  property and  investments  in real
estate partnerships,  leveraged leases, and private placement  subordinated debt
instruments.






Item 10.    DIRECTORS AND EXECUTIVE OFFICERS OF THE
            REGISTRANTS

      (a)  Identification of Directors

           John M.  Dunn,  61,  President  and Chief  Executive  Officer of Dunn
           Hospitality  Group,   Evansville,   Indiana,  hotel  development  and
           management  company.  He is also a director of Old  National  Bank of
           Evansville. He has been a director of SIGECO and SIGCORP since 1996.

           John D.  Engelbrecht,  48,  President and Chief Executive  Officer of
           South Central Communications, Evansville, Indiana, owner and operator
           of radio and television  stations in Indiana,  Kentucky and Tennessee
           and MUZAK  franchises  in 14 U.S.  cities.  He is also a director  of
           Fifth  Third  Bank,  Indiana;  Evansville,  Indiana.  He  has  been a
           director of SIGECO and SIGCORP since 1996.

           Andrew  E.  Goebel,  52,  President  of  SIGCORP  since  April  1999;
           Executive  Vice  President  of  SIGCORP   1997-1999;   Secretary  and
           Treasurer of SIGCORP  1996-1997;  Chief  Executive  Officer of SIGECO
           since April 1999;  President  and Chief  Executive  Officer of SIGECO
           1997-  1999;  Senior  Vice  President,  Chief  Financial  Officer and
           Secretary of SIGECO 1996-1997; Senior Vice President, Chief Financial
           Officer,   Secretary  &  Treasurer  of  SIGECO  1989-1996;  and  Vice
           President,  Secretary and Treasurer of SIGECO 1984-1989. He is also a
           director of Old National Bank of  Evansville.  He has been a director
           of SIGCORP and SIGECO since September 1997.

           Robert L. Koch II, 61, President and Chief Executive  Officer of Koch
           Enterprises, Inc., Evansville,  Indiana, holding company comprised of
           manufacturers of aluminum die castings,  industrial  painting systems
           and wholesale distributors of heating and air conditioning equipment.
           He is a director of Fifth Third Bancorp, Cincinnati, Ohio and Bindley
           Western  Industries,  Inc. of  Indianapolis,  Indiana.  He has been a
           director of SIGECO since 1986 and a director of SIGCORP since 1996.

           Donald A.  Rausch,  69,  Chairman of the Board,  President  and Chief
           Executive  Officer  1990-1995,   of  UF  Bancorp,  Inc.,  Evansville,
           Indiana;  Chairman of the Board and  President,  1985-1995,  of Union
           Federal Savings Bank, Evansville,  Indiana. He has been a director of
           SIGECO since 1982 and a director of SIGCORP since 1996.

           Officer of SIGECO  1988-1990;  Executive  Vice  President and General
           Manager of SIGECO  1985-1988.  He is also a director  of Ohio  Valley
           Electric  Corp.,  Indiana-  Kentucky  Electric  Corp.,  National City
           Bancshares  and the National City Bank of  Evansville.  He has been a
           director of SIGECO since 1985 and a director of SIGCORP since 1996.

           Richard  W.  Shymanski,  63,  Chairman of the Board  1995- 1999,  and
           President  1983-1995,  of Harding  Shymanski & Company,  Professional
           Corporation, Certif ied Public  Accountants,  Evansville, Indiana. He
           has been a director  of SIGECO  since 1989 and  a director of SIGCORP
           since  1996.   Retired  December  31, 1999 from  Harding  Shymanski &
           Company

           *Donald E. Smith, 73, President  and Chief Executive Officer of First
           Financial Corporation,  Terre Haute, Indiana;  Chairman  and director
           of  Terre Haute First National Bank, Terre Haute, Indiana;  President
           and  director of Terre  Haute  Oil Corp.,  Chairman  and  director of
           Princeton Mining Co., Inc.,  Chairman  and director of Deep Vein Coal
           Company and  Chairman  and  director of R.J.  Oil  Co.,  all of Terre
           Haute, Indiana;  and a director of Blackhawk Coal Corporation. He has
           been a director of SIGECO  since 1964 and a director of SIGCORP since
           1996.  *Retired  as  a  director  of  SIGECO  and  SIGCORP  effective
           December 31, 1999.

           James S.  Vinson,  58,  President  and  Professor  of  Physics at the
           University  of  Evansville in  Evansville,  Indiana since 1987.  Vice
           President  of Academic  Affairs and  Professor  of Physics at Trinity
           University of San Antonio, Texas 1983-1987. He has been a director of
           SIGECO since 1989 and a director of SIGCORP since 1996.

      (b)  Identification of Executive Officers

           The information  required by this item is included in Part I, Item 1.
           - BUSINESS on page 13, to which reference is hereby made.


Item 11.  EXECUTIVE COMPENSATION AND TRANSACTIONS


            General.  The following three tables set forth  compensation paid by
         SIGCORP  and SIGECO to the five  highest  paid  executive  officers  of
         SIGCORP  or  SIGECO  during  the past  three  years  whose  total  cash
         compensation for the calendar year 1999 exceeded  $100,000.  The tables
         include a Summary  Compensation Table (Table 1); a table showing Option
         Grants in Last  Fiscal Year  (Table 2), and a table  showing  Aggregate
         Option  Exercises in Last Fiscal Year and Fiscal Year End Option Values
         (Table 3).

TABLE 1
                                SUMMARY COMPENSATION TABLE

                                                   Long Term
                             Annual Compensation   Compensation
                             -------------------   ------------
                                                      Awards:
                                                      -------
                                                      Shares
Name and Principal                                   Underlying
Position at SIGCORP                                   Options        All Other
or SIGECO             Year   Salary     Bonus(1)        (#)        Compensation

Ronald G. Reherman    1999 $ 409,801   $ 159,100       54,529          None
Chairman and Chief
Executive Officer     1998   363,467     150,500         None          None
of SIGCORP and
Chairman of the       1997   346,875      67,000       52,955          None
Board of SIGECO

Andrew E. Goebel      1999   275,014      80,156       37,489          None
President of SIGCORP
and                   1998   220,436      65,625        7,007          None
Chief Executive
Officer of SIGECO     1997   190,208      35,000       20,993          None

J. Gordon Hurst       1999   217,048      62,500       25,049          None
President and Chief
Operating Officer     1998   196,637      59,375        1,974          None
of SIGECO             1997   177,083      32,800       19,858          None

Ronald G. Jochum      1999   140,563      19,500        4,601          None
Vice President        1998   128,127      18,750        4,055          None
Power Supply of       1997   123,958      18,000        4,728          None
SIGECO

Jeffrey L. Davis      1999   123,650      16,500        4,090          None
Vice President        1998   107,213      15,000        3,431          None
Support Services of
SIGECO                1997    98,125      13,650        3,783          None


(1)  These amounts are cash awards under the Corporate Performance Plan based on
     performance for the prior plan year.


TABLE 2

OPTION GRANTS IN LAST FISCAL YEAR

                            Individual Grants



                           % of
                           Total
               Number of   Options
               Shares      Granted    Exercise             Potential Realizable
               Under-      to         of Base              Value at Assumed
               lying       Employees  Price (2)            Annual Rates of Stock
               Options     in         (Per        Expira-  Price Appreciation
               Granted(1)  Fiscal     Share)      tion     for Option Term
    Name          (#)      Year        ($)        Date            ($)
                                                               5%(3)    10%(3)
R.G. Reherman  54,529      26.65      27.0000    7/19/2009   925,911  2,346,440
A.E. Goebel    37,489      18.32      27.0000    7/19/2009   636,569  1,613,191
J.G. Hurst     25,049      12.24      27.0000    7/19/2009   425,336  1,077,885
R.G. Jochum     4,601       2.25      27.0000    7/19/2009    78,126    197,986
J.L. Davis      4,090       2.00      27.0000    7/19/2009    69,449    175,997


(1)  The options were granted July 19, 1999.  For Messrs.  Reherman,  Goebel and
     Hurst, options vest one-half of the total each year after the date of grant
     with total  vesting  occurring  at the  two-year  anniversary.  For Messrs.
     Jochum and Davis, options vest one year after the date of grant.

(2)  Equal to market price on grant date.

(3)  These values are not a prediction of what SIGCORP believes the market value
     of its common stock will be in the next 10 years.  They are merely  assumed
     values required to be calculated in accordance with SEC Rules.


TABLE 3

AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR 1999
AND FISCAL YEAR-END OPTION VALUES



                                       Number of
                                       Securities       Value of
                                       Underlying       Unexercised
                                       Unexercised      In-the-Money
                                       Options at       Options at
                                       Year-End(2       Year-End (3)
                                          (#)               ($)
               Shares     Underlying
               Acquired   Unexercised
               on         Value
               Exercise   Realized(1)  Exercisable/     Exercisable/
Name              (#)          ($)     Unexercisable    Unexercisable

R.G. Reherman       -          -       136,691/54,529    $ 362,853/0
A.E. Goebel     4,000     37,833       63,097/37,489       152,085/0
J.G. Hurst          -          -       57,509/25,049       154,599/0
R.G. Jochum         -          -       23,802/4,601        31,447/0
J.L. Davis          -          -       16,519/4,090        15,278/0


(1)  Market  value  of  underlying  securities  at time of  exercise  minus  the
     exercise price.


(2)  Options  granted in 1996 are restated to reflect 3 for 2 common stock split
     on March 27, 1997.

(3)  Market value of  underlying  securities  at fiscal  year-end  (December 31,
     1999) of $22.75 per share minus the exercise price.

     Change  of  Control  Agreements.  In order to  insure  SIGCORP  and  SIGECO
continuity of management  and  operations in the event of a change of control of
SIGCORP or SIGECO, agreements have been entered into between SIGCORP, SIGECO and
Messrs.  Reherman,  Goebel, Hurst, Jochum and Davis. The agreements provide that
in the event of a change of control  of  SIGCORP  or  SIGECO,  the salary of the
named officers will continue for the lesser of a period of three years, or until
retirement age, at their existing compensation levels (unless a lesser amount is
the maximum  amount  deductible by SIGCORP for United States  Federal income tax
purposes, in which case the continued salary would be at such lesser amount).

     Retirement   Plans.   All  officers   participate  in  SIGECO's   trusteed,
noncontributory  tax qualified Pension Plan for Salaried Employees (the "Pension
Plan').  Retirement  income,  as defined  in the  Pension  Plan,  is based on an
employee's  average monthly  earnings  during the highest paid five  consecutive
years in the Pension Plan of the employee's final 10 years of continuous service
prior to retirement or other  termination of employment and is calculated in two
increments:  1.52  percent of such  average  monthly  earnings  for each year of
accredited service or part thereof up to a maximum of 30 years; plus .69 percent
of such average  monthly  earnings for each year of  accredited  service or part
thereof in excess of 30 years to a maximum of 10 years.  Amounts  payable  under
the Pension Plan are not subject to social security or other offset.

     The years of service in the Pension Plan credited to officers  named in the
compensation table above are R.G.  Reherman-36  years, 6 months;  A.E. Goebel-27
years, 1 month; J.G.  Hurst-30 years;  R.G.  Jochum-5 years, 3 months;  and J.L.
Davis-19 years, 3 months.

     The following  table  illustrates the estimated  retirement  income payable
under the Pension Plan, based on the specific  remuneration  levels and years of
service classification shown.


                               Pension Plan Table
                                Years of Service

   Covered
Remuneration        15         20          25           30           35

 $100,000        $22,800    $30,400     $38,000      $45,600      $49,050
  125,000         28,500     38,000      47,500       57,000       61,300
  170,000(1)      38,760     51,680      64,600       77,520       83,380
and above

(1)  As of January 1, 2000, the OMNIBUS Budget  Reconciliation Act of 1993 (OBRA
     '93)  limited  annual  compensation  to  $170,000  for  purposes of pension
     calculations under tax qualified pension plans.


    SIGECO has a non-qualified  Supplemental  Retirement Plan (the "Supplemental
Plan")  covering  certain  senior  officers  of  SIGECO  who  qualify  under the
applicable length of service and other eligibility  provisions.  It is presently
anticipated  that  Messrs.  Goebel,  Hurst,  Jochum and Davis will  qualify  for
benefits  under the  Supplemental  Plan.  The  Supplemental  Plan  provides  for
supplemental retirement income to be paid such that, when combined with benefits
receivable under SIGECO's  Pension Plan, total retirement  benefits paid will be
equal to 50 percent of the  average of the senior  officer's  final  three years
base salary  excluding  bonuses.  In the case of death,  survivor  benefits  are
payable to surviving  spouse, if any, at an actuarially  adjusted level.  SIGECO
has  entered  into  an  agreement  with  Mr.  Reherman  that is  similar  to the
Supplemental  Plan except that the retirement income paid is equal to 70 percent
of his  highest  annualized  salary as Chief  Executive  Officer or  Chairman of
SIGECO.  SIGECO has purchased life insurance on the  participants  sufficient in
amount  to  fund  actuarially  all of  SIGECO's  future  liabilities  under  the
Supplemental Plan and the Agreement.

    Death  Benefits  Plan.  SIGECO has a  Supplemental  Post-  Retirement  Death
Benefits  Plan for  officers  and other  senior  executives  to provide  retired
participants  with the equivalent of 25-35 percent of the  pre-retirement  group
life  insurance  benefit  under  SIGECO's  group  insurance  plan  for  salaried
employees.  SIGECO has  purchased  insurance  on the lives of the  participants,
which is projected to allow SIGECO to recover the entire cost of this plan.

    Stock  Option  Plan.  The 1994 Stock Option Plan was adopted by the Board of
Directors at its meeting held December 21, 1993, and by SIGECO's shareholders at
their  meeting held March 22,  1994.  Pursuant to the  exchange  whereby  SIGECO
common   stockholders   became   stockholders   of  SIGCORP,   SIGECO's   common
stockholders,  by agreeing to the exchange,  also agreed to the amendment of the
1994 Stock Option Plan to provide for the issuance of SIGCORP  shares.  The 1994
Stock  Option  Plan  authorizes  the  granting  of options to  officers  and key
employees  of SIGCORP  and SIGECO to  purchase  up to 750,000  shares of SIGCORP
Common  Stock  (adjusted  for 3 for 2 stock  split on March 27,  1997).  Options
granted under the 1994 Stock Option Plan may constitute  incentive stock options
(within the  meaning of Section 422 of the  Internal  Revenue  Code of 1986,  as
amended), or nonqualified stock options  (collectively,  "options").  To date, a
total of 750,000 options have been granted.




Item 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS
            AND MANAGEMENT

Security Ownership of Certain Beneficial Owners

     As of December 31, 1999,  each of the following  stockholders  was known to
the  management  to be the  beneficial  owner of more than five  percent  of the
outstanding shares of any class of voting securities as set forth below.


                                               Amount and
                                               Nature of
                       Name and Address of     Beneficial           Percent
Title of Class         Beneficial Owner        Ownership            of Class

$100 Par Preferred     IDS Certificate         75,000 Shares        40.3%
Stock of SIGECO        Company                 Registered Owner
                       %IDS Financial
                       Services, Inc.
                       3000 IDS Tower 10
                       Minneapolis, MN  55440


Common Stock of        SIGCORP, Inc.           15,754,826 Shares    100%
SIGECO                 20 N.W. Fourth Street   Registered Owner
                       P.O. Box 3606
                       Evansville, IN  47735


Security Ownership of Directors and Executive Officers

     The  following  table shows the  beneficial  ownership,  as of December 31,
1999, of SIGCORP Common Stock, by each director,  the Chief  Executive  Officer,
and each of the other executive  officers named in the Compensation  Table found
under  "Executive  Compensation".  Also  shown is the total  ownership  for such
persons and other  executive  officers as a group. No member of the group is the
beneficial owner of any of SIGECO's Preferred Stock.


                                    Amount and Nature of
                                    Beneficial Ownership(2)

                                                                       Percent
Name of Beneficial Owner(1)         Direct    Indirect        Total    of Class

John M. Dunn                         3,169        -           3,169      .02
John D. Engelbrecht                  3,260        -           3,260      .02
Robert L. Koch II                    3,627        -           3,627      .02
Donald A. Rausch                    12,762        -          12,762      .06
Ronald G. Reherman                  12,290      559          12,849      .06
Richard W. Shymanski                 2,475    8,464          10,939      .04
Donald E. Smith(3)                  17,128      555          17,683      .08
James S. Vinson                        997        -             997        -
Andrew E. Goebel                    11,098        -          11,098      .05
J. Gordon Hurst                      1,944        -           1,944      .01
Ronald G. Jochum                       400        -             400        -
Jeffrey L. Davis                       168        -             168        -
All of the above and other
executive officers
as a group (14)                                              83,902      .36

(1)  Beneficial  ownership  includes  those shares over which an individual  has
     sole or shared voting,  or investment  powers,  such as shares in which the
     spouse,  minor children or other relatives  living in the home of the named
     person have a beneficial  interest,  and shares held in SIGCORP's  Dividend
     Reinvestment Plan and other trust accounts.

(2)  Includes  shares held jointly or in other  capacities,  as to which in some
     cases beneficial ownership is disclaimed. Does not include shares which the
     named individual has the right to acquire under the 1994 Stock Option Plan.
     See Table 3 for the number of shares that can currently be acquired.

(3)  Donald E. Smith is a director and  President of Princeton  Mining  Company,
     which owns 360,186  shares of Common Stock;  director and President of R.J.
     Oil and Refining  Co.,  Inc.,  which owns 129,331  shares of Common  Stock;
     director of Blackhawk Coal Corporation, which owns 188,599 shares of Common
     Stock; Chairman,  CEO, President and director of Terre Haute First National
     Bank,  which holds 28,931 shares of Common Stock as trustee;  and President
     and  director of Terre Haute Oil  Corporation,  which owns 3,199  shares of
     Common Stock. The aggregate  number of such shares  represents 3.01 percent
     of Common Stock outstanding.



Item 14.    EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND
REPORTS ON FORM 8-K


 (a)  3) Exhibits:
        SIGCORP and SIGECO
        EX-2(a)  Agreement  and  Plan  of  Exchange,  of  common  stock  between
                 Southern  Indiana Gas and Electric  Company and SIGCORP,  Inc.,
                 dated  February 23, 1995.  (Physically  filed and designated as
                 Exhibit  2(a) in  Amendment  No.  1 to  Form S- 4  Registration
                 Statement filed January 20, 1995, File No. 33-57381.)

        SIGCORP
        EX-2(a)  Agreement and Plan of Merger by and among Indiana Energy, Inc.,
                 SIGCORP,  Inc.  and Vectren  Corporation,  dated as of June 11,
                 1999. (Physically filed and designated as Exhibit 2 to Form 8-K
                 filed June 15, 1999, File No. 01-11603.)

        EX-3(a)  Restated Articles of Incorporation of SIGCORP, Inc. (Physically
                 filed and designated as Exhibit 3(a) in Amendment No. 1 to Form
                 S-4 Registration  Statement,  filed February 23, 1995, File No.
                 33-57381.)

        EX-3(b)  By-Laws of SIGCORP,  Inc. . (Physically filed and designated as
                 Exhibit  3(b) in  Amendment  No.  1 to  Form S- 4  Registration
                 Statement, filed February 23, 1995, File No. 33-57381.)

        EX-4(a)  Rights Agreement,  between SIGCORP,  Inc. and Continental Stock
                 Transfer & Trust  Company,  Rights Agent,  dated as of December
                 31, 1995.  (Physically  filed and  designated as Exhibit 4.1 in
                 Form 8-B  Registration  Statement filed December 15, 1995, File
                 No. 1-11603.)

        EX-4(b)  Stock  Option  Agreement,  between  SIGCORP,  Inc. and  Indiana
                 Energy, Inc., dated  as of June 11, 1999. (Physically filed and
                 designated  as  Exhibit 4-1 to Form 8-K filed June 15, File No.
                 01-11603.)

        SIGECO
        EX-3(a)  Amended  Articles of  Incorporation  as amended March 26, 1985.
                 (Physically  filed and  designated in Form 10-K, for the fiscal
                 year 1985,  File No.  1-3553,  as Exhibit  3- A.)  Articles  of
                 Amendment of the Amended Articles of Incorporation, dated March
                 24, 1987. (Physically filed and designated in Form 10-K for the
                 fiscal year 1987, File No. 1-3553, as Exhibit 3-A.) Articles of
                 Amendment  of the  Amended  Articles  of  Incorporation,  dated
                 November 27, 1992.  (Physically  filed and  designated  in Form
                 10-K for the fiscal year 1992,  File No. 1-3553,  as Exhibit 3-
                 A).

        EX-3(b)  By-Laws as amended through December 18, 1990. (Physically filed
                 in Form 10-K for the fiscal  year  1990,  File No.  1-3553,  as
                 Exhibit  3-B.) By-Laws as amended  through  September 22, 1993.
                 (Physically  filed and  designated  in Form 10-K for the fiscal
                 year 1993,  File No.  1-3553,  as EX-3 (b).) By-Laws as amended
                 through  January 1, 1995.  (Physically  filed and designated in
                 Form  10-K  for the  fiscal  year  1995,  File No.  1-3553,  as
                 EX-3(b).)

     EX-4(a)*    Mortgage  and  Deed of Trust dated as of April 1, 1932  between
                 Southern  Indiana Gas and Electric  Company and  Bankers  Trust
                 Company, as Trustee, and Supplemental Indentures  thereto dated
                 August 31,  1936,  October 1, 1937,  March 22,  1939,   July 1,
                 1948, June 1, 1949, October 1, 1949, January 1, 1951,  April 1,
                 1954,  March 1,  1957,  October 1,  1965,  September  1,  1966,
                 August 1, 1968,  May 1, 1970,  August  1, 1971,  April 1, 1972,
                 October 1, 1973,  April 1, 1975,  January  15,  1977,  April 1,
                 1978, June 4, 1981, January 20, 1983,  November 1,  1983, March
                 1,  1984,  June 1,  1984,  November  1,  1984,  July  1,  1985,
                 November  1,  1985,  June  1,  1986.   (Physically  filed   and
                 designated  in  Registration  No. 2- 2536 as Exhibits  B-1  and
                 B-2; in  Post-effective  Amendment No. 1 to  Registration   No.
                 2-62032 as Exhibit (b)(4)(ii),  in Registration No. 2-88923  as
                 Exhibit 4(b)(2),  in Form 8-K, File No. 1-3553,  dated  June 1,
                 1984 as Exhibit (4), File No. 1-3553,  dated March  24, 1986 as
                 Exhibit 4-A, in Form 8-K, File No. 1-3553,  dated  June 3, 1986
                 as Exhibit (4).) July 1, 1985 and November 1,  1985 (Physically
                 filed and  designated in Form 10-K,  for the  fiscal year 1985,
                 File No.  1-3553,  as  Exhibit  4-A.)  November   15,  1986 and
                 January 15, 1987.  (Physically  filed and   designated  in Form
                 10-K, for the fiscal year 1986,  File No.   1-3553,  as Exhibit
                 4-A.) December 15, 1987.  (Physically  filed  and designated in
                 Form 10-K,  for the  fiscal  year 1987,   File No.  1-3553,  as
                 Exhibit  4-A.)  December  13,  1990.   (Physically   filed  and
                 designated in Form 10-K,  for the fiscal year 1990, File No. 1-
                 3553,  as Exhibit 4-A.)  April 1, 1993.  (Physically  filed and
                 designated in Form 8-K,  dated April 13, 1993, File 1-3553,  as
                 Exhibit 4.) June 1,  1993  (Physically  filed and designated in
                 Form 8-K, dated June 14, 1993,  File 1-3553, as Exhibit 4.) May
                 1, 1993.  (Physically  filed  and  designated in Form 10-K, for
                 the fiscal year 1993, File  No. 1-3553,  as Exhibit 4(a).) July
                 1, 1999.  (Physically  filed and designated in Form 10-Q, dated
                 August 16, 1999,  File 1- 3553, as Exhibit 4(a).)

                 *  Pursuant  to  paragraph   (b)(4)(iii)(a)   of  Item  601  of
                 Regulation  S-K,  SIGECO agrees to furnish to the Commission on
                 request any  instrument  with respect to long-term  debt if the
                 total  amount  of  securities  authorized  thereunder  does not
                 exceed 10% of the total assets of SIGECO, and has therefore not
                 filed such documents as exhibits to this Form 10-K.

       EX-10.1   Agreement,  dated,  January  30,  1968,  for  Unit No. 4 at the
                 Warrick Power Plant of Alcoa Generating  Corporation ("Alcoa"),
                 between  Alcoa and Southern  Indiana Gas and Electric  Company.
                 (Physically filed and designated in Registration No. 2-29653 as
                 Exhibit 4(d)-A.)

       EX-10.2   Letter of Agreement,  dated June 1, 1971, and Letter Agreement,
                 dated June 26, 1969, between Alcoa and Southern Indiana Gas and
                 Electric   Company.   (Physically   filed  and   designated  in
                 Registration No. 2-41209 as Exhibit 4(e)-2.)

       EX-10.3   Letter  Agreement,  dated April 9, 1973,  and  Agreement  dated
                 April 30,  1973,  between  Alcoa and  Southern  Indiana Gas and
                 Electric   Company.   (Physically   filed  and   designated  in
                 Registration No. 2-53005 as Exhibit 4(e)-4.)

       EX-10.4   Electric Power Agreement (the "Power Agreement"), dated May 28,
                 1971,  between  Alcoa and  Southern  Indiana  Gas and  Electric
                 Company.  (Physically  filed and designated in Registration No.
                 2-41209 as Exhibit 4(e)- 1.)

       EX-10.5   Second  Supplement,  dated as of July 10,  1975,  to the  Power
                 Agreement  and Letter  Agreement  dated  April 30, 1973 - First
                 Supplement.  (Physically  filed and designated in Form 12-K for
                 the fiscal year 1975, File No. 1-3553, as Exhibit 1(e).)

       EX-10.6   Third  Supplement,  dated  as of May  26,  1978,  to the  Power
                 Agreement.  (Physically  filed and  designated in Form 10-K for
                 the fiscal year 1978 as Exhibit A-1.)

       EX-10.7   Letter Agreement dated August 22, 1978 between Southern Indiana
                 Gas and Electric Company and Alcoa,  which amends Agreement for
                 Sale in an Emergency of Electrical Power and Energy  Generation
                 by Alcoa and Southern  Indiana Gas and Electric  Company  dated
                 June 26, 1979.  (Physically  filed and  designated in Form 10-K
                 for the fiscal year 1978, File No. 1-3553, as Exhibit A-2.)

       EX-10.8   Fifth  Supplement,  dated as of December 13, 1978, to the Power
                 Agreement.  (Physically  filed and  designated in Form 10-K for
                 the fiscal year 1979, File No. 1- 3553, as Exhibit A-3.)

       EX-10.9   Sixth  Supplement,  dated  as of July  1,  1979,  to the  Power
                 Agreement.  (Physically  filed and  designated in Form 10-K for
                 the fiscal year 1979, File No. 1-3553, as Exhibit A-5.)

       EX-10.10  Seventh  Supplement,  dated as of October 1, 1979, to the Power
                 Agreement.  (Physically  filed and  designated in Form 10-K for
                 the fiscal year 1979, File No. 1- 3553, as Exhibit A-6.)

       EX-10.11  Eighth  Supplement,  dated as of June 1,  1980 to the  Electric
                 Power Agreement, dated May 28, 1971, between Alcoa and Southern
                 Indiana  Gas  and  Electric  Company.   (Physically  filed  and
                 designated  in Form 10-K for the  fiscal  year  1980,  File No.
                 1-3553, as Exhibit (20)-1.)

       EX-10.13**Agreement dated July 22, 1986 between  Southern Indiana Gas and
                 Electric  Company and A. E. Goebel  regarding  continuation  of
                 employment.  (Physically  filed and designated in Form 10-K for
                 the fiscal year 1992, File No. 1-3553, as Exhibit 10-A-13.)

       EX-10.14**Agreement dated July 25, 1986 between  Southern Indiana Gas and
                 Electric Company and Ronald G. Reherman regarding  continuation
                 of  employment.  (Physically  filed and designated in Form 10-K
                 for the fiscal year 1992, File No. 1-3553, as Exhibit 10-A-14.)

       EX-10.15**Agreement dated July 22, 1986 between  Southern Indiana Gas and
                 Electric Company and James A. Van Meter regarding  continuation
                 of  employment.  (Physically  filed and designated in Form 10-K
                 for the fiscal year 1992, File No. 1-3553, as Exhibit 10-A-15.)

       EX-10.16**Agreement dated February 22, 1989 between  Southern Indiana Gas
                 and Electric Company and J. Gordon Hurst regarding continuation
                 of  employment.  (Physically  filed and designated in Form 10-K
                 for the fiscal year 1992, File No. 1-3553 as Exhibit 10-A-16.)

       EX-10.17**Summary  description  of  Southern  Indiana  Gas  and  Electric
                 Company's nonqualified Supplemental Retirement Plan (Physically
                 filed and  designated  in Form 10-K for the  fiscal  year 1992,
                 File No. 1-3553, as Exhibit 10-A-17.)

       EX-10.18**Supplemental Post Retirement Death Benefits Plan, dated October
                 10, 1984. (Physically filed and designated in Form 10-K for the
                 fiscal year 1992, File No. 1-3553, as Exhibit 10-A-18.)

       EX-10.19**Summary  description  of  Southern  Indiana  Gas  and  Electric
                 Company's  Corporate  Performance  Incentive Plan.  (Physically
                 filed and  designated  in Form 10-K for the  fiscal  year 1992,
                 File No. 1-3553, as Exhibit 10-A-19.)

       EX-10.20**Southern   Indiana  Gas  and   Electric   Company's   Corporate
                 Performance  Incentive  Plan  as  amended  for  the  plan  year
                 beginning January 1, 1994.  (Physically filed and designated in
                 Form 10-K for the fiscal year 1993, File No. 1-3553, as Exhibit
                 10-A-20.)

       EX-10.21**Southern  Indiana Gas and  Electric  Company  1994 Stock Option
                 Plan  (Physically  filed and designated in Southern Indiana Gas
                 and Electric Company's Proxy Statement dated February 22, 1994,
                 File No. 1-3553, as Exhibit A.)

       EX-10.22**Summary  description  of  Southern  Indiana  Gas  and  Electric
                 Company's Corporate  Performance  Incentive Plan as amended for
                 the plan year beginning January 1, 1997.  (Physically filed and
                 designated  in the SIGCORP,  Inc. and Southern  Indiana Gas and
                 Electric  Company's Joint Proxy Statement dated March 23, 1998,
                 File No.  1-11603  and File No.  1- 3553,  under  "Compensation
                 Committee Report On Executive Compensation", page 9.)

       EX-10.23**Agreement dated September 1, 1997 between  Southern Indiana Gas
                 and   Electric   Company   and  Andrew  E.   Goebel   regarding
                 continuation  of employment,  which  supercedes  such agreement
                 dated July 22, 1986.  (Physically  filed and designated in Form
                 10-K for the fiscal  year  1997,  File No.  1-3553,  as Exhibit
                 10.23.)

       EX-10.24**Agreement dated September 1, 1997 between  Southern Indiana Gas
                 and Electric Company and J. Gordon Hurst regarding continuation
                 of employment,  which  supercedes such agreement dated February
                 22, 1989. (Physically filed and designated in Form 10-K for the
                 fiscal year 1997, File No. 1-3553, as Exhibit 10.24.)

       EX-10.25**Agreement  dated January 10, 1997 between  Ronald G. Jochum and
                 Southern   Indiana   Gas   and   Electric   Company   regarding
                 continuation of employment. (Physically filed and designated in
                 Form 10-K for the fiscal year 1997, File No. 1-3553, as Exhibit
                 10.25.)

       EX-10.26**Agreement dated January 10, 1997 between  Southern  Indiana Gas
                 and  Electric   Company  and  Ronald  G.   Reherman   regarding
                 continuation  of employment,  which  supercedes  such agreement
                 dated May 6, 1991.  (Physically  filed and  designated  in Form
                 10-K for the fiscal  year  1997,  File No.  1-3553,  as Exhibit
                 10.26.)

       EX-10.27**Agreement dated April 16, 1997 between Southern Indiana Gas and
                 Electric Company and Ronald G. Reherman regarding  supplemental
                 pension  and  disability   benefits,   which   supercedes  such
                 agreement  dated  February  1,  1995.   (Physically  filed  and
                 designated  in Form 10-K for the  fiscal  year  1997,  File No.
                 1-3553, as Exhibit 10.27.)

       EX-10.28**Agreement dated January 10, 1997 between  Southern  Indiana Gas
                 and   Electric   Company   and   Jeffrey  L.  Davis   regarding
                 continuation of employment. (Physically filed and designated in
                 Form 10-K for the fiscal year 1997, File No. 1-3553, as Exhibit
                 10.28.)

       EX-10.29**Southern  Indiana  Gas  and  Electric  Company's   nonqualified
                 Supplemental  Retirement  Plan as amended,  effective April 16,
                 1997.  (Physically  filed and  designated  in Form 10-K for the
                 fiscal year 1997, File No. 1-3553, as Exhibit 10.29.)

                 ** Filed pursuant to paragraph  (b)(10)(iii)(A)  of Item 601 of
                 Regulation S-K.


   SIGECO
   EX-12       Computation of Ratio of Earnings to Fixed Charges


   SIGCORP
   EX-21       Subsidiaries of the Registrant


   SIGCORP and SIGECO
   EX-24    Power of Attorney


   SIGCORP and SIGECO
   EX-27    Financial Data Schedule






                                   Exhibit 21

                                  SIGCORP, INC.
                         Subsidiaries of the Registrant

                    Southern Indiana Gas and Electric Company
              Southern Indiana Properties, Incorporated in Indiana
                  Energy Systems Group, Incorporated in Indiana
               Southern Indiana Minerals, Incorporated in Indiana
                SIGCORP Energy Services, Incorporated in Indiana
                    SIGCORP Capital, Incorporated in Indiana
                     SIGCORP Fuels, Incorporated in Indiana
                SIGCORP Power Marketing, Incorporated in Indiana
            SIGCORP Communications Services, Incorporated in Indiana
             SIGECO Advanced Communications, Incorporated in Indiana
             SIGCORP Environmental Services, Incorporated in Indiana