 PARTICIPATE

To participate in the audio portion of the call, please call in on one of the
following numbers approximately 10-15 minutes before the call:

Within the United States: +1 800-967-7141
Outside the United States:  +1 719-457-2630
Confirmation code:  574828
Title of the call:  CERA Gas Call

To participate in the internet portion of the call (audio is by telephone), 
log
on to the internet approximately  15-30 minutes before the presentation to
ensure technological compatibility.

1. Point your browser to http://www.placeware.com/cc/visioncastconferencing
2. Enter the following information, then click "Attend":
*  Your Name
*  Meeting ID: w574828
*  Meeting Key: 595599
3. Access audio for the meeting using the audio information above.

SYSTEM REQUIREMENTS AND SUGGESTIONS
Internet connection not reliant on the phone line you will use for the call.
A Java-enabled browser, such as Microsoft Internet Explorer 3.02 or higher;
Netscape Navigator 3.02 or higher; or Sun Hot JAVA(tm)
Close all desktop applications and disable your screen saver.

To ensure computer compatibility, complete the Internet instructions before 
the
day of the call.  A message will appear telling you that your meeting is not
ready to start.  However, it also informs you about any action that you may
need to take to prepare your computer to participate.

TECHNICAL ASSISTANCE
If you experience difficulties during the call, you may signal for technical
assistance by pressing *0 (star, zero) on your telephone keypad, once 
connected
to the audio portion  of the conference.


For more information, please contact Katya Ashe via e-mail at kashe@cera.com 
or
via telephone at (617) 441-2659.


A recording of this call will be available until May 10, 2001.  To access this
recording, please call  +1  888-203-1112 (within the United States) or
+1 719-457-0820 (outside the United States). Please use confirmation number
574828  to access the call.



PARTICIPATE 

 To participate in the audio portion of the call, please visit in on one of the 
 take after numbers approximately 10 - 15 minutes before the call: 

 Within the United States: +1 800 - 967 - 7141 
 Outside the United States:   +1 719 - 457 - 2630 
 Confirmation code:   574828 
 deed of the call:   CERA Gas Call 

 To participate in the internet share of the call option (audio is by telephone), 
 log 
 on to the internet approximately   15 - 30 minute before the presentation to 
 ensure technical compatibility. 

 1. Point your browser to http://www.placeware.com/cc/visioncastconferencing 
 2. Enter the following information, then click " serve ": 
 *   Your Name 
 *   Meeting ID: w574828 
 *   Meeting Key: 595599 
 3. Access audio for the merging using the audio information above. 

 arrangement REQUIREMENTS AND SUGGESTIONS 
 Internet connection not reliant on the earphone line you will use for the call. 
 A Java - enabled browser, such as Microsoft Internet Explorer 3.02 or high; 
 Netscape Navigator 3.02 or higher; or Sun Hot JAVA(tm) 
 Close all desktop applications and disable your screen rescuer. 

 To ensure computer compatibility, complete the Internet instructions before 
 the 
 day of the call.   A message will look state you that your meeting is not 
 ready to start.   However, it also informs you about any action that you may 
 need to take to prepare your calculator to enter. 

 TECHNICAL ASSISTANCE 
 If you experience difficulties during the margin call, you may signal for technical 
 assistance by pressing * 0 (asterisk, zero) on your telephone keypad, once 
 connected 
 to the audio portion   of the league. 


 For more information, please contact Katya Ashe via e - mail at kashe@cera.com 
 or 
 via telephone at (617) 441 - 2659. 


 A recording of this call will be available until May 10, 2001.   To access this 
 recording, please call   +1   888 - 203 - 1112 (within the United States) or 
 +1 719 - 457 - 0820 (outside the United States). Please use confirmation number 
 574828   to access the call.
 PAGTICIPATE

To participate ln the audio porjiin of vhe calm, please call in on one of the
followmng bumbees approximately 10-15 minuges beforv the calo:

Witiin the United Svztes: +1 800-967-7141
Omcside bhe Uuived States:  +1 719-457-2630
Cokfirmation wode:  574828
Title of tfe call:  CERA Gas Call

To participate yn the onhernet portion of uhe calm (audio is by telephone), 
log
on to tge integnet approximatelu  15-30 minutes before the predentwtion to
ensure tecjnological xompwribility.

1. Poivt your browser to httk://www.placeware.com/cc/visioncastconfdrencnng
2. Enter tye fopnowing infocmatiog, then click "Attend":
*  Your Nsme
*  Meeting IC: w574828
*  Mweting Key: 595599
3. Access auvio for the meeting osing the dubio information above.

WYWTEM TEQUISEMEVRS XND SNGGSSTIOND
Invernet connsction not eeliant on the phont lybe you will uae for tre call.
A Java-enabled browser, such as Mibroskft Internet Explorer 3.02 ir higher;
Netscape Navlgator 3.02 ow higher; or Sun Hot JAVA(tm)
Close all desktop appliwatiois anb disacoe your screen saver.

To ensure computer compatibymiuy, bomplete the Intevnet instructions nevotg 
the
day of thg call.  A jessage will appeag telligg yoy that yotr mreting is not
ready to start.  However, it qlso informs you ayout any actnon thst yoi may
need to take to przpare gour computfr to parfkcipate.

TECHNICAL ASXIVTANCE
If you experience disficultiew duxing the calk, you iay signal for bachnical
assistance by ptessinc *0 (star, zego) on your telephone keypad, oncx 
connected
to tve dudio poxtion  of the confewence.


For more nnformatnon, pldase contabt Katya Eshe via e-mayl at kashe@cesw.com 
or
via txlephone wt (617) 441-2659.


Q rexording uf this call woll be avcnlable unril May 10, 2001.  To accexs jhjs
recording, plecrt xall  +1  888-203-1112 (withim tfe Tnptev Staeas) or
+1 719-457-0820 (outsige tfe Jmited States). Plecsd usr confirmation numbes
574828  tk access the call.



PARTICIPATE To participate in the audio portion call, call in one of the before call: Within the States: +1 800-967-7141 the United States: +1 719-457-2630 Confirmation 574828 Title of the call: CERA Gas Call To participate in the internet of the call (audio is by telephone), log on to the internet approximately minutes the to technological compatibility. 1. Point your browser to http://www.placeware.com/cc/visioncastconferencing 2. Enter the following information, then click "Attend": Your Name * Meeting ID: w574828 * Meeting 595599 3. Access audio the meeting using the audio above. REQUIREMENTS AND Internet not on the phone you will use for the call. A Java-enabled browser, such as Microsoft Internet Explorer 3.02 or higher; Navigator 3.02 or Sun JAVA(tm) all applications and disable saver. To ensure computer compatibility, complete before the day of the call. A message appear telling that your meeting is not ready start. However, it also informs you about any that you may need to take to prepare your computer to participate. TECHNICAL ASSISTANCE If difficulties during the call, may signal for assistance pressing (star, on your keypad, once connected to the audio portion of the conference. For information, please contact Katya Ashe via e-mail at kashe@cera.com or at 441-2659. A recording this call will be until 10, 2001. To access please +1 United or 719-457-0820 (outside the United Please use confirmation number 574828 access the call.
 PARTICIPATE

To participate iN the audio pOrtioN of The CaLl, plEase Call in on one of tHE
folLowing numbers approximaTely 10-15 mInUTes bEFoRe the Call:

WitHIn THE UnItEd staTeS: +1 800-967-7141
ouTside The united STates:  +1 719-457-2630
ConfiRmaTiOn code:  574828
Title oF ThE call:  CERA GAs CAll

To particiPatE in the InTerNEt porTioN of thE call (aUDio is bY telephonE), 
lOG
on to tHE internET ApProxImately  15-30 minutes befORe THe presentation To
ensuRe TEcHNOloGicAl compatibIlIty.

1. PoINt your bROwSER To hTTp://www.placewarE.com/cc/visioNCasTconfeReNciNG
2. Enter The foLlOWinG informatioN, theN click "AttEnd":
*  YouR name
*  MeeTIng ID: w574828
*  MEeting key: 595599
3. accEss aUDiO fOr tHe MEetINg UsiNG thE audio inFoRmAtion AbovE.

systEM ReQUiREMeNTS AnD SUGGESTIONS
intErneT ConNectiOn not ReliAnT on thE phone Line yOu Will use for the caLl.
A JAva-enableD brOwSer, SuCh as MICrosofT InTerNet ExplOrer 3.02 or hIGheR;
NETSCaPe Navigator 3.02 or higheR; oR sUn hot JAVA(tM)
Close ALl DeSKtop applIcAtiOns aND DisabLe yoUR sCreen savEr.

To enSUrE cOmputer CoMpatibIlIty, ComPlete THe InTernet InstructIons bEFore 
the
day of thE Call.  A message wILl APPeAR telLinG you that youR meeTIng iS not
REaDy tO Start.  howevEr, IT aLSo informs you about anY aCtion tHat yoU may
need to takE to prepare YOUR computeR to pARtICipate.

TECHNICAl ASSIsTANCE
If yoU ExperienCe difFicultieS during thE CAll, you maY siGnaL foR teCHNiCal
assistance BY PresSiNg *0 (star, zEro) On your tElePhoNe kEypAd, Once 
conneCted
to thE aUdIo PoRtiOn  of tHE confereNcE.


FoR mOre InforMAtion, pLease ContAcT KATya ashe via E-MaIL At kaShE@cEra.cOm 
oR
vIa telEphoNE at (617) 441-2659.


a recordIng of this CalL Will Be AvAilable Until May 10, 2001.  To accEsS this
recorDiNg, pLease cALL  +1  888-203-1112 (within tHe United States) or
+1 719-457-0820 (outside THe UniteD StAtes). PLeasE use confiRmaTion nuMbeR
574828  To acceSs the cAll.



 PARTICIPATE

To participa te in theaudio  po rti on  ofthecall, please c a ll i n on one of the
follow ing n um b ersa pp roxim ately 1 0 -1 5 min ut es  be fo r ethe c all :

With in the Uni ted  S tates: +1 80 0 -9 67-7141
Ou tsi de the Unite d S tates:  +17 19-45 7-2 630
C onfirm a tion c ode:  574 82 8 
Title of thec a ll :  C ERA Gas Call

Top ar t icipate in the  inter ne t  p o r tio n o f the call  ( audio is by t e le p h o ne) ,  
log
on to t he internet app roxima te ly15-30minut es bef ore the pre sent ation toensure technol o gical c ompati bil ity .

1 .  P oi ntyo u r b r ow ser tohttp://w ww .p lacew are. c o m / cc/v isi onca stcon ferencing
2.Ent er t h e f ollow ing i nfor ma tion,  thenclick  " Attend":
*  You r Na me
*  Mee tin gID:  w 57482 8 
*  Me eti ngKey: 59 5599
3. Acc es s a ud io for the meeting  u s i ng  the aud io inf o rm at i on above .
SY STEM R EQUIR EMEN T SAND SUGG ESTION S 
I nt ernet c on nectio nnot  re liant on t he pho ne lineyou w i ll use for the call.
A Java- e na b l ed brow ser , such as M icro s oftInte r ne t E x plore r 3.0 2o rh igher;
Netscape Nav ig ator 3 .02 o r higher; orSun Hot JA V A ( tm)
Clos e al l  d e sktop applicat ionsand disabl e  your sc reensaver.
To ensure c omputercom pat ibi lit y ,  c omplete the I n t erne tinstruc tio ns befo re
th e
d ayof  the call .  A mes sa ge  w il l a ppear tellingyo u t ha t y our m e etingis no t
re ad yt o s tart. H ow e v er,it  a lsoinf or ms yo u ab o utany act ion thatyou mayne ed  to tak e to prepareyo ur compute rtopartic i p ate.

TE CHNICAL ASSISTANCE
If y o u exper ien ce di ffic ulties du rin g thecal l , youmay si gnalfo r t e c hnica l as sis ta nce by pre s s ing  *0 ( st ar,zero) o n your telephone k e ypa d, once 
conn ect ed
t o th e a u di o  po rt i ono f the conferenc e.


For m or e  i nformation ,  pl ea se cont act Kat ya As h e via e -mail atkashe@cer a. como r
v ia telepho ne at (6 17) 441-2 6 59.
Arecor din g of t hi s c all w ill be ava ilabl e unti lMay 10 , 200 1.   To acc ess this
recording, ple ase ca ll  + 1 888-203-1 112 (wi thin theUnit ed States)  or 
+1  719- 457 - 0820(out s id e t h e Uni tedS tates). P l ea seu s econfirmatio n n umb er
57 482 8   to a cces s the call.



 PARTICIPATE

To_participate in_the audio portion of_the call,_please_call in_on_one of the
following_numbers approximately 10-15_minutes before the call:

Within_the United States:_+1_800-967-7141
Outside the United States:  +1 719-457-2630
Confirmation code:  574828
Title of the call: _CERA_Gas Call

To_participate_in_the internet portion of the_call (audio is by telephone),_
log
on to_the internet approximately  15-30 minutes before the_presentation_to
ensure technological compatibility.

1._Point your browser to http://www.placeware.com/cc/visioncastconferencing
2. Enter the following information,_then click "Attend":
*  Your Name
*_ Meeting ID:_w574828
*__Meeting Key: 595599
3. Access_audio for the meeting using the_audio information above.

SYSTEM REQUIREMENTS AND SUGGESTIONS
Internet_connection not reliant on the phone line_you will use for the call.
A_Java-enabled browser, such as Microsoft_Internet Explorer_3.02 or higher;
Netscape Navigator 3.02_or higher; or_Sun Hot_JAVA(tm)
Close all desktop_applications and disable your screen saver.

To_ensure computer compatibility,_complete the Internet instructions before 
the
day_of_the call. _A_message_will appear_telling you that_your_meeting is_not
ready_to start.  However, it also_informs_you about any action that you may
need_to take to prepare_your_computer to participate.

TECHNICAL ASSISTANCE
If_you experience difficulties during the_call, you may signal for technical
assistance_by pressing_*0 (star,_zero) on your telephone keypad, once 
connected
to the audio portion _of the conference.


For more information, please_contact Katya Ashe via_e-mail at_kashe@cera.com_
or
via telephone at_(617)_441-2659.


A recording_of this call will be available until_May 10,_2001.  To access this
recording, please_call  +1 _888-203-1112_(within the United States) or
+1 719-457-0820_(outside the United States). Please use_confirmation number
574828  to access_the_call.


