Exhibit 99.1

                       UK REGULATOR CLEARS AEP-CSW MERGER

Columbus,  Ohio, and Dallas, Jan. 25, 2000-- The United Kingdom's  Department of
Trade and Industry  (DTI) today gave its approval to the common  ownership of UK
interests  resulting from the pending  merger of American  Electric Power (NYSE:
AEP) and Central and South West Corp. (NYSE: CSR). This approval was conditional
on the companies agreeing to certain assurances  concerning  operation of the UK
interests.

The  DTI,  a  UK  government   department   with   authority  over  mergers  and
acquisitions,  became  involved  because  AEP and  CSW  each  have an  ownership
interest in UK regional  electric  companies.  AEP owns 50 percent of  Yorkshire
Electricity Group and CSW owns Seeboard. The merger of the U.S. parent companies
created a merger situation in the UK by virtue of the common ownership of the UK
companies that will result from completion of the U.S. merger. This is the final
clearance for the merger required in the UK.

"We welcome the  announcement  by the DTI and have agreed to the  conditions the
regulators  have placed on our UK  operations,"  said E. Linn  Draper  Jr.,  AEP
chairman,  president and chief executive officer.  "The DTI decision  eliminates
any  uncertainty  surrounding  our continued  involvement  in the UK electricity
market and is a positive step for the AEP-CSW merger."

Among assurances listed by the DTI are:

- -     Yorkshire and Seeboard have sufficient resources and facilities to meeT
      customer service obligations;

- -     reasonable effort will be made to ensure Yorkshire and Seeboard maintain
      investment grade for all debt instruments; and

- -     Yorkshire and Seeboard will have a full separation of distribution and
      supply activities.

If the companies had not agreed to the  assurances,  the DTI could have referred
the  merger to the  Competition  Commission  for  further  review of any  public
interest issues in the UK resulting from the AEP-CSW merger.

The assurances will take effect when the AEP-CSW merger is completed.

"The DTI  decision  is great  news for our  merger,  but it does not mean we are
ready to announce a definitive  plan for Yorkshire and  Seeboard,"  Draper said.
"Any decision  requires the agreement and support of New Century Energies (NYSE:
NCE), our equal partner in Yorkshire. We will work with NCE to explore potential
opportunities to continuously improve our operations and competitive position in
the UK. The DTI  announcement  provides  a clearer  regulatory  framework  as we
continue our discussions with NCE."

AEP and CSW  announced  their  intention to merge on Dec.  22, 1997.  The merger
requires  approvals by the FERC, the Federal  Communications  Commission and the
Securities  and Exchange  Commission  and clearance by the Department of Justice
under the Hart-Scott-Rodino  Antitrust Improvements Act of 1976. Upon completion
of the merger, the new company will be called American Electric Power.

The administrative law judge who presided over the FERC merger hearing found the
AEP-CSW  merger to be  consistent  with the  public  interest.  AEP and CSW also
reached a  settlement  with the FERC trial  staff in which the staff  supports a
finding that the merger will have no adverse effect on competition.

The merger has received approval from state regulatory  commissions in Arkansas,
Louisiana, Oklahoma and Texas, the four states within CSW's service territory.



AEP  and  CSW  have  announced  settlement  agreements  with  the  International
Brotherhood  of  Electrical  Workers  (IBEW) and the  Utility  Workers  Union of
America  (UWUA)  resulting in the IBEW and UWUA local unions  withdrawing  their
opposition  to  completion  of the merger;  as well as with the Indiana  Utility
Regulatory  Commission  (IURC) resulting in Indiana  customers  receiving merger
benefits and  including a commitment by the IURC not to oppose the merger during
consideration  of the merger agreement by the FERC and the SEC. AEP and CSW also
have announced a settlement agreement with key parties in Kentucky that has been
approved by the Kentucky Public Service Commission;  a settlement agreement with
the Michigan  Public  Service  Commission;  and a settlement  agreement with the
Missouri Public Service Commission  addressing that commission's  concerns about
the effect of the merger on retail  competition in the state. The Public Utility
Commission  of Ohio  (PUCO)  has  notified  the FERC  that the PUCO is no longer
opposing the pending merger or seeking conditions on the merger.

Additionally,  AEP and CSW have reached  settlements with a variety of wholesale
customers who had  intervened  in federal  proceedings.  The Nuclear  Regulatory
Commission has approved a license transfer application related to the merger.

Central and South West Corp. is a global,  diversified  public  utility  holding
company based in Dallas. CSW owns four electric operating  subsidiaries  serving
1.7 million  customers in Texas,  Oklahoma,  Louisiana and Arkansas;  a regional
electricity company in the United Kingdom; other international energy operations
and   non-utility   subsidiaries   involved   in   energy-related   investments,
telecommunications, energy efficiency and financial transactions.

AEP,  a  global  energy   company,   is  one  of  the  United  States'   largest
investor-owned  utilities,  providing energy to 3 million  customers in Indiana,
Kentucky,  Michigan,  Ohio,  Tennessee,  Virginia  and  West  Virginia.  AEP has
holdings in the United States, the United Kingdom,  China and Australia.  Wholly
owned  subsidiaries  provide power  engineering,  energy  consulting  and energy
management services around the world. The company is based in Columbus, Ohio.

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News releases and other information about AEP can be found on the World Wide Web
at http://www.aep.com News releases and other information about CSW can be found
on the World Wide Web at http://www.csw.com.