Spreadsheet: mark_whitt__25312__West NatGas Prices 1004
Sheet: Gas Average Basis

Basis Curves
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | WEST NATURAL GAS PRICES
 |  | AS OF
 |  |  |  |  |  |  |  |  |  | Last-Day | Cash | Cash | Change | BOM | BOM | Change | Prompt Month | Change | Q4 | Change | Winter 2001-02 | Change | Q1 | Change | Q2 | Change | Summer 2002 | Change | Q3 | Change | Q4 | Change | Winter 2002-03 | Change
 |  |  |  |  |  |  |  |  |  | Cash Settle | Price | Spread |  | Price | Spread |  |  |  | 2001 |  | Nov-01/Mar-02 |  | 2002 |  | 2002 |  | Apr-02/Oct-02 |  | 2002 |  | 2002 |  | Nov-02/Mar-03
 |  | California Region Notional
 |  |  |  |  | Sheet Name | Row Num for CurveName | Column Letter for Date
 |  |  |  | Basis | BasisCurves | 13 | B
 |  | Gas Trading |  | IntraMonth | CurveFetch | 4 | D
 |  |  |  |  |  |  |  |  | IntraMonth
 |  |  |  | IntraMonth Hub Curve | IF-HEHUB
 |  |  |  | IntraMonth Month | 2001-10-01 00:00:00
 |  |  |  |  | 2001-10-31 00:00:00 |  |  |  | Date Start |  |  |  |  |  |  |  | 2001-11-01 00:00:00 |  | 2001-10-01 00:00:00 |  | 2001-11-01 00:00:00 |  | 2002-01-01 00:00:00 |  | 2002-04-01 00:00:00 |  | 2002-04-01 00:00:00 |  | 2002-07-01 00:00:00 |  | 2002-10-01 00:00:00 |  | 2002-11-01 00:00:00
 |  |  |  |  |  |  |  |  | Date End |  |  |  |  |  |  |  |  |  | 2001-12-01 00:00:00 |  | 2002-03-01 00:00:00 |  | 2002-03-01 00:00:00 |  | 2002-06-01 00:00:00 |  | 2002-10-01 00:00:00 |  | 2002-09-01 00:00:00 |  | 2002-12-01 00:00:00 |  | 2003-03-01 00:00:00
 |  | WEST REGION BASIS NOTIONAL |  | Intra-Month | Basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | IntraMonth Match |  | Basis Match
 |  | NGI-PGE/CG |  | NGI-PGE/CG | NGI-PGE/CG |  |  |  |  |  |  |  |  |  |  |  |  |  |  | -0.043 |  |  |  | -0.0483 |  | -0.01 |  |  |  | -0.045 |  | -0.03
 |  | NGI-PGE/TOPOCK |  | NGI-PGE/TOPOCK | NGI-PGE/TOPOCK
 |  | NGI-MALIN |  | NGI-MALIN | NGI-MALIN
 |  | NGI-SOCAL |  | NGI-SOCAL | NGI-SOCAL
 |  | Southwest Region Notional
 |  | SAN JUAN |  | IF-ELPO/SJ | IF-ELPO/SJ
 |  | ELPO/PERMIAN |  | IF-ELPO/PERMIAN | IF-ELPO/PERMIAN
 |  | WAHA |  | IF-WAHA-TX | IF-WAHA-TX
 |  | NGPL/MIDCON |  | IF-NGPL/MIDCON | IF-NGPL/MIDCON
 |  | Northwest Region Notional
 |  | OPAL |  | IF-NWPL_ROCKY_M | IF-NWPL_ROCKY_M
 |  | STANFIELD |  | NW-STANFIELD | NW-STANFIELD
 |  | SUMAS |  | IF-NWPL/CNBR-US | IF-NTHWST/CANBR
 |  | AECO |  | CGPR-AECO/USIM | CGPR-AECO/BASIS
 |  | CIG |  | IF-CIG/RKYMTN | IF-CIG/RKYMTN
 |  | Ontario Region Notional
 |  | Central Region Notional
 |  | East & Texas Region Notional
 |  | Nymex
 |  | Nymex |  | IF-HEHUB | NG
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | SPARK SPREADS*
 |  | AS OF
 |  | 2001-10-03 00:00:00
 |  |  |  |  |  |  |  |  |  | Last-Day | Cash |  | Change | BOM |  | Change | Prompt Month | Change | Q4 | Change | Winter 2001-02 | Change | Q1 | Change | Q2 | Change | Summer 2002 | Change | Q3 | Change | Q4 | Change | Winter 2002-03 | Change
 |  |  |  |  |  |  |  |  |  | Cash Settle |  |  |  |  |  |  |  |  | 2001 |  | Nov-01/Mar-02 |  | 2002 |  | 2002 |  | Apr-02/Oct-02 |  | 2002 |  | 2002 |  | Nov-02/Mar-03
 |  | MID-COLUMBIA |  | NGI-PGE/CG | NGI-PGE/CG
 |  | NP15 |  | NGI-PGE/TOPOCK | NGI-PGE/TOPOCK
 |  | SP15 |  | NGI-MALIN | NGI-MALIN
 |  | PALO VERDE |  | NGI-SOCAL | NGI-SOCAL
 |  | * Calculated according to power prices from 'PowerPrices' tab (usually only as current as prior day) less O & M expense of $2.00.  Gas prices are as follows:
 |  |  |  |  |  |  |  |  |  |  | PV= Permian plus .12
 |  |  |  |  |  |  |  |  |  |  | [NAME] plus .33
 |  |  |  |  |  |  |  |  |  |  | NP= PGE plus .20
 |  |  |  |  |  |  |  |  |  |  | Mid-C= Malin