EXHIBIT 99.3

                                  NEWS RELEASE


              Pioneer and Woodside Agree to Jointly Explore for Gas
                             on Gulf of Mexico Shelf

Dallas, Texas, January 23, 2003 -- Pioneer Natural Resources Company ("Pioneer")
(NYSE:PXD) and Woodside  Energy (USA) Inc., a subsidiary of Woodside Energy Ltd.
of Australia (ASX:WPL) have agreed to a joint exploration program for a two-year
campaign over the shallow-water Texas Shelf region of the Gulf of Mexico.

Under  the  agreement,  Woodside  has  taken  a  50%  interest  in  47  offshore
exploration blocks operated by Pioneer. The agreement covers eight prospects and
19 leads  and  includes  five  wells in 2003 and  three in 2004.  The  agreement
represents  a total cost to  Woodside of US$55  million.  Most of the wells will
target gas plays below 15,000 feet (4500 meters).

The eight wells to be drilled by the  parties in 2003 and 2004 are on  prospects
generated  and leased by Pioneer since 1997.  In addition,  the  companies  will
evaluate for potential inclusion in the drilling program shallower gas prospects
on other blocks covered by the leases.

Woodside's  Director  of New  Ventures,  Dr.  Agu  Kantsler,  said  the  Pioneer
agreement is a key building block in Woodside's growth strategy. It provides the
company with a  cost-effective  opportunity  to  participate in and evaluate the
Gulf of Mexico shelf gas play.

"The Gulf of Mexico is one of  Woodside's  four  focus  areas in our  search for
international   exploration  and  production  opportunities  to  complement  our
Australian interests," Dr. Kantsler said. "Through this transaction, we continue
our staged  approach to building a balanced  portfolio of shallow and  deepwater
opportunities in the Gulf of Mexico to manage risk and reward."

Pioneer's  Executive  Vice  President  of  Exploration,  Chris  Cheatwood,  said
drilling  of the first of five  wells is  expected  to begin  before  the end of
March.  "By combining both companies'  technical  expertise and capital,  we can
better  manage our risk and properly test a broader portfolio of  prospects," he
said.

Dr.  Kantsler  said  the  Pioneer   acreage   targets   emerging  deep  gas,  an
under-explored  play that has  attracted  significant  interest  in the past few
years,  primarily because  discoveries can be brought into production within six
months to two years due to their  proximity  to  existing  infrastructure. "This
opportunity  offers the  potential  for Woodside to achieve gas  production  and
revenue from the Gulf shelf within the next two years," Dr. Kantsler said.

Woodside Energy Ltd. is Australia's  largest  exploration and production company
by market  capitalization  and is  operator  of the North  West  Shelf  Venture,
Australia's largest resource project.  Its interests include Australia,  Gulf of
Mexico, North Africa and West Africa.

Pioneer is a large  U.S.  independent  oil and gas  exploration  and  production
company with operations in the United States, Canada,  Argentina,  South Africa,
Gabon and Tunisia.

Except for historical  information contained herein, the statements in this News
Release are forward-looking statements that are made pursuant to the Safe Harbor
Provisions   of  the  Private   Securities   Litigation   Reform  Act  of  1995.
Forward-looking  statements  and  the  business  prospects  of  Pioneer  Natural
Resources  Company are subject to a number of risks and  uncertainties  that may
cause Pioneer's  actual results in future periods to differ  materially from the
forward-looking  statements.  These risks and uncertainties include, among other
things,   volatility  of  oil  and  gas  prices,   product  supply  and  demand,
competition,   government  regulation  or  action,  foreign  currency  valuation
changes,  foreign government tax and regulation changes,  litigation,  the costs
and results of drilling and operations,  Pioneer's  ability to replace reserves,
implement its business plans, or complete its development projects as scheduled,
access  to and cost of  capital,  uncertainties  about  estimates  of  reserves,
quality of technical  data,  environmental  and weather  risks.  These and other
risks are  described in Pioneer's  10-K and 10-Q Reports and other  filings with
the Securities and Exchange Commission.









                                       
Pioneer Natural Resources Company         Woodside Energy Ltd. & Subsidiaries
5205 N. O'Connor Blvd., Suite 1400        ACN 004 898 962
Irving, Texas  75039                      1 Adelaide Terrace, Perth, Western Australia  6000
Tel: 972 444 9001                         Tel: 61 8 9348 4000   Fax: 61 8 9348 5539
www.pioneernrc.com                        www.woodside.com.au

Investment and Media Contact:             Media Contact:
Susan Spratlen, Vice President,           Rob Millhouse, Public Issues Manager
Investor Relations and Communication      W: 61 8 9348 4281
972 444 9001                              M: 61 419 588 166

                                          Investment Contact:
                                          Mike Lynn, Investor Relations Manager
                                          W: 61 8 9348 4283
                                          M: 61(10439) 691 592