State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Adams BRL 11/15/2007 KCM -0.25

Colorado Adams CAN 11/15/2007 VEL -2.21

Colorado Adams CRA 11/15/2007 CAR -2.48

Colorado Adams FLX 11/15/2007 FAR -2.29 GRF -2.36

Colorado Adams HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Adams MUS 11/15/2007 GFK -1.99 GRF -1.91

Colorado Adams OAT 5/1/2009 MIN -0.22

Colorado Adams RAP 11/15/2007 GRF -1.91

Colorado Adams SAF 11/15/2007 COR -2.66 COL -1.69

Colorado Adams SEM 11/15/2007 PAR -1.02

Colorado Adams SOR 11/15/2007 GLF -1.00 SCD -0.77

Colorado Adams YC 11/15/2007 AMA -0.34 GLF -0.30

Colorado Adams YSB 11/15/2007 GLF -1.05

Colorado Alamosa BRL 11/15/2007 KCM -0.20

Colorado Alamosa CAN 11/15/2007 VEL -2.74

Colorado Alamosa CRA 11/15/2007 CAR -3.20

Colorado Alamosa HAD 5/1/2009 WCD -0.85

Colorado Alamosa FLX 11/15/2007 FAR -2.81 GRF -2.66

Colorado Alamosa HRS 5/1/2009 PNW -1.30

Colorado Alamosa HRW 5/2/2011 GLF -1.14 KCM -0.77

Colorado Alamosa MUS 11/15/2007 GFK -2.51 GRF -2.21

Colorado Alamosa OAT 5/1/2009 MIN -0.22

Colorado Alamosa RAP 11/15/2007 GRF -2.21

Colorado Alamosa SAF 11/15/2007 COR -2.36 COL -2.21

Colorado Alamosa SEM 11/15/2007 PAR -1.02

Colorado Alamosa SOR 11/15/2007 GLF -0.72 SCD -0.49

Colorado Alamosa SWW 11/15/2007 PNW -1.01 WCD -0.91

Colorado Alamosa YC 11/15/2007 AMA -0.20 GLF -0.16

Colorado Alamosa YSB 11/15/2007 GLF -1.05

Colorado Arapahoe BRL 11/15/2007 KCM -0.20

Colorado Arapahoe CAN 11/15/2007 VEL -2.29

Colorado Arapahoe CRA 11/15/2007 CAR -2.56

Colorado Arapahoe FLX 11/15/2007 FAR -2.29 GRF -2.36

Colorado Arapahoe HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Arapahoe MUS 11/15/2007 GFK -1.99 GRF -1.91

Colorado Arapahoe OAT 5/1/2009 MIN -0.22

Colorado Arapahoe RAP 11/15/2007 GRF -1.91

Colorado Arapahoe SAF 11/15/2007 COR -2.66 COL -1.76

Colorado Arapahoe SEM 11/15/2007 PAR -1.02

Colorado Arapahoe SOR 11/15/2007 GLF -0.96 SCD -0.73

Colorado Arapahoe YC 11/15/2007 AMA -0.33 GLF -0.29

Colorado Arapahoe YSB 11/15/2007 GLF -1.05

Colorado Archuleta BRL 5/1/2012 WCD -1.14

Colorado Archuleta CAN 11/15/2007 VEL -2.89

Colorado Archuleta CRA 11/15/2007 CAR -3.36

Colorado Archuleta FLX 11/15/2007 FAR -2.96 GRF -2.66
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Archuleta HRW 5/1/2012 PNW -1.11 WCD -0.86

Colorado Archuleta MUS 11/15/2007 GFK -2.66 GRF -2.21

Colorado Archuleta OAT 5/1/2009 MIN -0.22

Colorado Archuleta RAP 11/15/2007 GRF -2.21

Colorado Archuleta SAF 11/15/2007 COR -2.14 COL -2.29

Colorado Archuleta SEM 11/15/2007 PAR -1.02

Colorado Archuleta SOR 6/1/2011 WCD -1.31

Colorado Archuleta YC 11/15/2007 PNW -0.40 WCD -0.65

Colorado Archuleta YSB 11/15/2007 GLF -1.05

Colorado Baca BRL 11/15/2007 KCM -0.25

Colorado Baca CAN 11/15/2007 RDW -2.59 VEL -2.66

Colorado Baca CRA 11/15/2007 CAR -3.04

Colorado Baca FLX 11/15/2007 FAR -2.59 RDW -2.59

Colorado Baca HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Baca MUS 11/15/2007 GFK -2.36 GRF -2.51

Colorado Baca OAT 5/1/2009 MIN -0.22

Colorado Baca RAP 11/15/2007 GRF -2.51

Colorado Baca SAF 11/15/2007 COR -2.89 COL -2.29

Colorado Baca SEM 11/15/2007 PAR -0.76

Colorado Baca SOR 6/1/2011 GLF -0.83 SCD -0.60

Colorado Baca YC 11/15/2007 AMA -0.27 GLF -0.23

Colorado Baca YSB 11/15/2007 GLF -0.91

Colorado Bent BRL 11/15/2007 KCM -0.20

Colorado Bent CAN 11/15/2007 VEL -2.59 RDW -2.59

Colorado Bent CRA 11/15/2007 CAR -2.88

Colorado Bent FLX 11/15/2007 FAR -2.51 RDW -2.59

Colorado Bent HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Bent MUS 11/15/2007 GFK -2.21 GRF -2.36

Colorado Bent OAT 5/1/2009 MIN -0.22

Colorado Bent RAP 11/15/2007 GRF -2.36

Colorado Bent SAF 11/15/2007 COR -2.81 COL -2.14

Colorado Bent SEM 11/15/2007 PAR -0.84

Colorado Bent SOR 11/15/2007 GLF -0.97 SCD -0.74

Colorado Bent YC 11/15/2007 AMA -0.32 GLF -0.28

Colorado Bent YSB 11/15/2007 GLF -0.91

Colorado Boulder BRL 11/15/2007 KCM -0.25

Colorado Boulder CAN 11/15/2007 VEL -2.21

Colorado Boulder CRA 11/15/2007 CAR -2.56

Colorado Boulder FLX 11/15/2007 FAR -2.29 GRF -2.21

Colorado Boulder HRS 5/1/2009 PNW -1.18

Colorado Boulder HRW 5/2/2011 GLF -1.05 KCM -0.68

Colorado Boulder MUS 11/15/2007 GFK -2.06 GRF -1.76

Colorado Boulder OAT 5/1/2009 MIN -0.22

Colorado Boulder RAP 11/15/2007 GRF -1.76

Colorado Boulder SAF 11/15/2007 COR -2.51 COL -1.69

Colorado Boulder SEM 11/15/2007 PAR -1.02
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Boulder SOR 11/15/2007 GLF -0.93 SCD -0.70

Colorado Boulder YC 11/15/2007 AMA -0.34 GLF -0.30

Colorado Boulder YSB 11/15/2007 GLF -1.05

Colorado Broomfield BRL 11/15/2007 KCM -0.25

Colorado Broomfield CAN 11/15/2007 VEL -2.21

Colorado Broomfield CRA 11/15/2007 CAR -2.48

Colorado Broomfield FLX 11/15/2007 FAR -2.29 GRF -2.36

Colorado Broomfield HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Broomfield MUS 11/15/2007 GFK -1.99 GRF -1.91

Colorado Broomfield OAT 5/1/2009 MIN -0.22

Colorado Broomfield RAP 11/15/2007 GRF -1.91

Colorado Broomfield SAF 11/15/2007 COR -2.66 COL -1.69

Colorado Broomfield SOR 11/15/2007 GLF -1.00 SCD -0.77

Colorado Broomfield YC 11/15/2007 AMA -0.36 GLF -0.32

Colorado Broomfield YSB 11/15/2007 GLF -1.05

Colorado Chaffee BRL 5/2/2011 WCD -1.15

Colorado Chaffee CAN 11/15/2007 VEL -2.51

Colorado Chaffee CRA 11/15/2007 CAR -2.96

Colorado Chaffee FLX 11/15/2007 FAR -2.59 GRF -2.44

Colorado Chaffee HRW 5/1/2012 GLF -1.15 KCM -0.78

Colorado Chaffee MUS 11/15/2007 GFK -2.36 GRF -1.99

Colorado Chaffee OAT 5/1/2009 MIN -0.22

Colorado Chaffee RAP 11/15/2007 GRF -1.99

Colorado Chaffee SAF 11/15/2007 COR -2.29 COL -1.99

Colorado Chaffee SEM 11/15/2007 PAR -1.02

Colorado Chaffee SOR 6/1/2011 WCD -1.47

Colorado Chaffee YC 11/15/2007 PNW -0.47 WCD -0.72

Colorado Chaffee YSB 11/15/2007 GLF -1.05

Colorado Cheyenne BRL 11/15/2007 KCM -0.25

Colorado Cheyenne CAN 11/15/2007 VEL -2.36 RDW -2.44

Colorado Cheyenne CRA 11/15/2007 CAR -2.64

Colorado Cheyenne FLX 11/15/2007 FAR -2.29 RDW -2.44

Colorado Cheyenne HRW 5/2/2011 GLF -1.05 KCM -0.68

Colorado Cheyenne MUS 11/15/2007 GFK -2.06 GRF -2.21

Colorado Cheyenne OAT 5/1/2009 MIN -0.22

Colorado Cheyenne RAP 11/15/2007 GRF -2.21

Colorado Cheyenne SAF 11/15/2007 COR -2.89 COL -1.99

Colorado Cheyenne SEM 11/15/2007 PAR -0.88

Colorado Cheyenne SOR 11/15/2007 GLF -1.01 SCD -0.78

Colorado Cheyenne YC 11/15/2007 AMA -0.40 GLF -0.36

Colorado Cheyenne YSB 11/15/2007 GLF -0.91

Colorado Clear Creek BRL 11/15/2007 KCM -0.20

Colorado Clear Creek CAN 11/15/2007 VEL -2.29

Colorado Clear Creek CRA 11/15/2007 CAR -2.64

Colorado Clear Creek FLX 11/15/2007 FAR -2.44 GRF -2.29

Colorado Clear Creek HRW 5/2/2011 GLF -1.05 KCM -0.68
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Clear Creek MUS 11/15/2007 GFK -2.14 GRF -1.84

Colorado Clear Creek OAT 5/1/2009 MIN -0.22

Colorado Clear Creek RAP 11/15/2007 GRF -1.84

Colorado Clear Creek SAF 11/15/2007 COR -2.44 COL -1.76

Colorado Clear Creek SEM 11/15/2007 PAR -1.02

Colorado Clear Creek SOR 11/15/2007 GLF -0.77 SCD -0.54

Colorado Clear Creek YC 11/15/2007 AMA -0.31 GLF -0.27

Colorado Clear Creek YSB 11/15/2007 GLF -1.05

Colorado Conejos BRL 11/15/2007 KCM -0.15

Colorado Conejos CAN 11/15/2007 VEL -2.81

Colorado Conejos CRA 11/15/2007 CAR -3.36

Colorado Conejos HAD 5/1/2009 WCD -0.85

Colorado Conejos FLX 11/15/2007 FAR -2.89 GRF -2.74

Colorado Conejos HRS 5/1/2009 PNW -1.30

Colorado Conejos HRW 5/2/2011 GLF -1.14 KCM -0.77

Colorado Conejos MUS 11/15/2007 GFK -2.59 GRF -2.29

Colorado Conejos OAT 5/1/2009 MIN -0.22

Colorado Conejos RAP 11/15/2007 GRF -2.29

Colorado Conejos SAF 11/15/2007 COR -2.29 COL -2.29

Colorado Conejos SEM 11/15/2007 PAR -1.02

Colorado Conejos SOR 6/1/2009 GLF -0.72 SCD -0.49

Colorado Conejos SWW 11/15/2007 PNW -1.01 WCD -0.91

Colorado Conejos YC 11/15/2007 AMA -0.24 GLF -0.20

Colorado Conejos YSB 11/15/2007 GLF -1.05

Colorado Costilla BRL 11/15/2007 KCM -0.20

Colorado Costilla CAN 11/15/2007 VEL -2.81

Colorado Costilla CRA 11/15/2007 CAR -3.20

Colorado Costilla HAD 5/1/2009 WCD -0.85

Colorado Costilla FLX 11/15/2007 FAR -2.81 GRF -2.74

Colorado Costilla HRW 5/1/2012 GLF -1.06 KCM -0.69

Colorado Costilla MUS 11/15/2007 GFK -2.51 GRF -2.29

Colorado Costilla OAT 5/1/2009 MIN -0.22

Colorado Costilla RAP 11/15/2007 GRF -2.29

Colorado Costilla SAF 11/15/2007 COR -2.36 COL -2.29

Colorado Costilla SEM 11/15/2007 PAR -1.00

Colorado Costilla SOR 11/15/2007 GLF -0.72 SCD -0.49

Colorado Costilla SWW 11/15/2007 PNW -1.01 WCD -0.91

Colorado Costilla YC 11/15/2007 AMA -0.29 GLF -0.25

Colorado Costilla YSB 11/15/2007 GLF -1.05

Colorado Crowley BRL 11/15/2007 KCM -0.20

Colorado Crowley CAN 11/15/2007 VEL -2.51 RDW -2.59

Colorado Crowley CRA 11/15/2007 CAR -2.88

Colorado Crowley FLX 11/15/2007 FAR -2.51 RDW -2.59

Colorado Crowley HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Crowley MUS 11/15/2007 GFK -2.21 GRF -2.21

Colorado Crowley OAT 5/1/2009 MIN -0.22
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Crowley RAP 11/15/2007 GRF -2.21

Colorado Crowley SAF 11/15/2007 COR -2.66 COL -2.06

Colorado Crowley SEM 11/15/2007 PAR -0.92

Colorado Crowley SOR 11/15/2007 GLF -0.96 SCD -0.73

Colorado Crowley YC 11/15/2007 AMA -0.31 GLF -0.27

Colorado Crowley YSB 11/15/2007 GLF -1.00

Colorado Custer BRL 11/15/2007 KCM -0.20

Colorado Custer CAN 11/15/2007 VEL -2.59

Colorado Custer CRA 11/15/2007 CAR -3.04

Colorado Custer FLX 11/15/2007 FAR -2.66 GRF -2.59

Colorado Custer HRW 5/1/2012 GLF -1.09 KCM -0.72

Colorado Custer MUS 11/15/2007 GFK -2.36 GRF -2.14

Colorado Custer OAT 5/1/2009 MIN -0.22

Colorado Custer RAP 11/15/2007 GRF -2.14

Colorado Custer SAF 11/15/2007 COR -2.44 COL -2.06

Colorado Custer SEM 11/15/2007 PAR -1.02

Colorado Custer SOR 6/1/2011 GLF -0.81 SCD -0.58

Colorado Custer YC 11/15/2007 AMA -0.30 GLF -0.26

Colorado Custer YSB 11/15/2007 GLF -1.05

Colorado Delta BRL 5/2/2011 WCD -1.12

Colorado Delta CAN 11/15/2007 VEL -2.59

Colorado Delta CRA 11/15/2007 CAR -3.04

Colorado Delta FLX 11/15/2007 FAR -2.74 GRF -2.36

Colorado Delta HRW 5/1/2012 GLF -1.26 KCM -0.89

Colorado Delta MUS 11/15/2007 GFK -2.44 GRF -1.91

Colorado Delta OAT 5/1/2009 MIN -0.22

Colorado Delta RAP 11/15/2007 GRF -1.91

Colorado Delta SAF 11/15/2007 COR -2.06 COL -1.99

Colorado Delta SEM 11/15/2007 PAR -1.02

Colorado Delta SOR 11/15/2007 WCD -1.32

Colorado Delta SWW 11/15/2007 PNW -0.95 WCD -0.85

Colorado Delta YC 11/15/2007 PNW -0.40 WCD -0.65

Colorado Delta YSB 11/15/2007 GLF -1.05

Colorado Denver BRL 11/15/2007 KCM -0.20

Colorado Denver CAN 11/15/2007 VEL -2.29

Colorado Denver CRA 11/15/2007 CAR -2.56

Colorado Denver FLX 11/15/2007 FAR -2.36 GRF -2.36

Colorado Denver HRW 5/2/2011 GLF -0.90 KCM -0.53

Colorado Denver MUS 11/15/2007 GFK -2.06 GRF -1.91

Colorado Denver OAT 5/1/2009 MIN -0.22

Colorado Denver RAP 11/15/2007 GRF -1.91

Colorado Denver SAF 11/15/2007 COR -2.51 COL -1.76

Colorado Denver SEM 11/15/2007 PAR -1.02

Colorado Denver SOR 11/15/2007 GLF -0.92 SCD -0.69

Colorado Denver SWW 11/15/2007 PNW -0.85 WCD -0.75

Colorado Denver YC 11/15/2007 AMA -0.31 GLF -0.27
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Denver YSB 11/15/2007 GLF -1.05

Colorado Dolores BRL 5/2/2011 WCD -1.11

Colorado Dolores CAN 11/15/2007 VEL -2.89

Colorado Dolores CRA 11/15/2007 CAR -3.44

Colorado Dolores FLX 11/15/2007 FAR -3.04 GRF -2.51

Colorado Dolores HRS 5/1/2009 PNW -1.30

Colorado Dolores HRW 5/2/2011 PNW -1.10 WCD -0.85

Colorado Dolores MUS 11/15/2007 GFK -2.74 GRF -2.06

Colorado Dolores OAT 5/1/2009 MIN -0.22

Colorado Dolores RAP 11/15/2007 GRF -2.06

Colorado Dolores SAF 11/15/2007 COL -2.21 COR -1.91

Colorado Dolores SEM 11/15/2007 PAR -1.02

Colorado Dolores SOR 6/1/2011 WCD -1.17

Colorado Dolores YC 11/15/2007 PNW -0.36 WCD -0.61

Colorado Dolores YSB 11/15/2007 GLF -1.00

Colorado Douglas BRL 11/15/2007 KCM -0.20

Colorado Douglas CAN 11/15/2007 VEL -2.36

Colorado Douglas CRA 11/15/2007 CAR -2.72

Colorado Douglas FLX 11/15/2007 FAR -2.44 GRF -2.44

Colorado Douglas HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Douglas MUS 11/15/2007 GFK -2.14 GRF -1.99

Colorado Douglas OAT 5/1/2009 MIN -0.22

Colorado Douglas RAP 11/15/2007 GRF -1.99

Colorado Douglas SAF 11/15/2007 COR -2.51 COL -1.84

Colorado Douglas SEM 11/15/2007 PAR -1.02

Colorado Douglas SOR 6/1/2011 GLF -0.92 SCD -0.69

Colorado Douglas YC 11/15/2007 AMA -0.32 GLF -0.28

Colorado Douglas YSB 11/15/2007 GLF -1.05

Colorado Eagle BRL 5/2/2011 WCD -1.21

Colorado Eagle CAN 11/15/2007 VEL -2.36

Colorado Eagle CRA 11/15/2007 CAR -2.80

Colorado Eagle FLX 11/15/2007 FAR -2.51 GRF -2.21

Colorado Eagle HRW 5/1/2012 GLF -1.23 KCM -0.86

Colorado Eagle MUS 11/15/2007 GFK -2.21 GRF -1.76

Colorado Eagle OAT 5/1/2009 MIN -0.22

Colorado Eagle RAP 11/15/2007 GRF -1.76

Colorado Eagle SAF 11/15/2007 COR -2.29 COL -1.76

Colorado Eagle SEM 11/15/2007 PAR -1.02

Colorado Eagle SOR 6/1/2011 WCD -1.47

Colorado Eagle YC 11/15/2007 PNW -0.46 WCD -0.71

Colorado Eagle YSB 11/15/2007 GLF -1.05

Colorado Elbert BRL 11/15/2007 KCM -0.20

Colorado Elbert CAN 11/15/2007 VEL -2.36

Colorado Elbert CRA 11/15/2007 CAR -2.64

Colorado Elbert FLX 11/15/2007 FAR -2.36 RDW -2.51

Colorado Elbert HRW 5/2/2011 GLF -1.00 KCM -0.63
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Elbert MUS 11/15/2007 GFK -2.06 GRF -2.06

Colorado Elbert OAT 5/1/2009 MIN -0.22

Colorado Elbert RAP 11/15/2007 GRF -2.06

Colorado Elbert SAF 11/15/2007 COR -2.66 COL -1.84

Colorado Elbert SEM 11/15/2007 PAR -1.00

Colorado Elbert SOR 11/15/2007 GLF -1.02 SCD -0.79

Colorado Elbert YC 11/15/2007 AMA -0.33 GLF -0.29

Colorado Elbert YSB 11/15/2007 GLF -1.05

Colorado El Paso BRL 11/15/2007 KCM -0.20

Colorado El Paso CAN 11/15/2007 VEL -2.44

Colorado El Paso CRA 11/15/2007 CAR -2.80

Colorado El Paso FLX 11/15/2007 FAR -2.44 GRF -2.51

Colorado El Paso HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado El Paso MUS 11/15/2007 GFK -2.21 GRF -2.06

Colorado El Paso OAT 5/1/2009 MIN -0.22

Colorado El Paso RAP 11/15/2007 GRF -2.06

Colorado El Paso SAF 11/15/2007 COR -2.59 COL -1.91

Colorado El Paso SEM 11/15/2007 PAR -1.00

Colorado El Paso SOR 6/1/2011 GLF -0.96 SCD -0.73

Colorado El Paso YC 11/15/2007 AMA -0.32 GLF -0.28

Colorado El Paso YSB 11/15/2007 GLF -1.05

Colorado Fremont BRL 11/15/2007 KCM -0.15

Colorado Fremont CAN 11/15/2007 VEL -2.51

Colorado Fremont CRA 11/15/2007 CAR -2.96

Colorado Fremont FLX 11/15/2007 FAR -2.59 GRF -2.51

Colorado Fremont HRW 5/1/2012 GLF -1.09 KCM -0.72

Colorado Fremont MUS 11/15/2007 GFK -2.29 GRF -2.06

Colorado Fremont OAT 5/1/2009 MIN -0.22

Colorado Fremont RAP 11/15/2007 GRF -2.06

Colorado Fremont SAF 11/15/2007 COR -2.44 COL -1.99

Colorado Fremont SEM 11/15/2007 PAR -1.02

Colorado Fremont SOR 6/1/2011 GLF -0.81 SCD -0.58

Colorado Fremont YC 11/15/2007 AMA -0.30 GLF -0.26

Colorado Fremont YSB 11/15/2007 GLF -1.05

Colorado Garfield BRL 5/2/2011 WCD -1.16

Colorado Garfield CAN 11/15/2007 VEL -2.51

Colorado Garfield CRA 11/15/2007 CAR -2.88

Colorado Garfield FLX 11/15/2007 FAR -2.66 GRF -2.21

Colorado Garfield HRS 5/1/2009 PNW -1.20

Colorado Garfield HRW 5/1/2012 GLF -1.26 KCM -0.89

Colorado Garfield MUS 11/15/2007 GFK -2.36 GRF -1.76

Colorado Garfield OAT 5/1/2009 MIN -0.22

Colorado Garfield RAP 11/15/2007 GRF -1.76

Colorado Garfield SAF 11/15/2007 COR -2.06 COL -1.84

Colorado Garfield SEM 11/15/2007 PAR -1.02

Colorado Garfield SOR 6/1/2011 WCD -1.32
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Garfield YC 11/15/2007 PNW -0.40 WCD -0.65

Colorado Garfield YSB 11/15/2007 GLF -1.00

Colorado Gilpin BRL 11/15/2007 KCM -0.20

Colorado Gilpin CAN 11/15/2007 VEL -2.29

Colorado Gilpin CRA 11/15/2007 CAR -2.64

Colorado Gilpin FLX 11/15/2007 FAR -2.36 GRF -2.29

Colorado Gilpin HRW 5/2/2011 GLF -1.05 KCM -0.68

Colorado Gilpin MUS 11/15/2007 GFK -2.06 GRF -1.84

Colorado Gilpin OAT 5/1/2009 MIN -0.22

Colorado Gilpin RAP 11/15/2007 GRF -1.84

Colorado Gilpin SAF 11/15/2007 COR -2.44 COL -1.69

Colorado Gilpin SEM 11/15/2007 PAR -1.02

Colorado Gilpin SOR 11/15/2007 GLF -0.83 SCD -0.60

Colorado Gilpin YC 11/15/2007 AMA -0.31 GLF -0.27

Colorado Gilpin YSB 11/15/2007 GLF -1.05

Colorado Grand BRL 5/2/2011 WCD -1.20

Colorado Grand CAN 11/15/2007 VEL -2.29

Colorado Grand CRA 11/15/2007 CAR -2.64

Colorado Grand FLX 11/15/2007 FAR -2.36 GRF -2.21

Colorado Grand HRW 5/2/2011 GLF -1.14 KCM -0.77

Colorado Grand MUS 11/15/2007 GFK -2.06 GRF -1.76

Colorado Grand OAT 5/1/2009 MIN -0.22

Colorado Grand RAP 11/15/2007 GRF -1.76

Colorado Grand SAF 11/15/2007 COR -2.36 COL -1.69

Colorado Grand SEM 11/15/2007 PAR -1.02

Colorado Grand SOR 11/15/2007 WCD -1.62

Colorado Grand YC 11/15/2007 PNW -0.47 WCD -0.72

Colorado Grand YSB 11/15/2007 GLF -1.05

Colorado Gunnison BRL 5/2/2011 WCD -1.15

Colorado Gunnison CAN 11/15/2007 VEL -2.59

Colorado Gunnison CRA 11/15/2007 CAR -3.04

Colorado Gunnison FLX 11/15/2007 FAR -2.74 GRF -2.44

Colorado Gunnison HRW 5/1/2012 GLF -1.23 KCM -0.86

Colorado Gunnison MUS 11/15/2007 GFK -2.44 GRF -1.99

Colorado Gunnison OAT 5/1/2009 MIN -0.22

Colorado Gunnison RAP 11/15/2007 GRF -1.99

Colorado Gunnison SAF 11/15/2007 COR -2.14 COL -1.99

Colorado Gunnison SEM 11/15/2007 PAR -1.02

Colorado Gunnison SOR 6/1/2011 WCD -1.32

Colorado Gunnison YC 11/15/2007 PNW -0.44 WCD -0.69

Colorado Gunnison YSB 11/15/2007 GLF -1.05

Colorado Hinsdale BRL 5/2/2011 WCD -1.15

Colorado Hinsdale CAN 11/15/2007 VEL -2.81

Colorado Hinsdale CRA 11/15/2007 CAR -3.28

Colorado Hinsdale FLX 11/15/2007 FAR -2.89 GRF -2.59

Colorado Hinsdale HRW 5/1/2012 PNW -1.18 WCD -0.93
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Hinsdale MUS 11/15/2007 GFK -2.59 GRF -2.14

Colorado Hinsdale OAT 5/1/2009 MIN -0.22

Colorado Hinsdale RAP 11/15/2007 GRF -2.14

Colorado Hinsdale SAF 11/15/2007 COR -2.06 COL -2.21

Colorado Hinsdale SEM 11/15/2007 PAR -1.02

Colorado Hinsdale SOR 11/15/2007 WCD -1.36

Colorado Hinsdale YC 11/15/2007 PNW -0.41 WCD -0.66

Colorado Hinsdale YSB 11/15/2007 GLF -1.05

Colorado Huerfano BRL 11/15/2007 KCM -0.20

Colorado Huerfano CAN 11/15/2007 VEL -2.66

Colorado Huerfano CRA 11/15/2007 CAR -3.12

Colorado Huerfano FLX 11/15/2007 FAR -2.66 GRF -2.74

Colorado Huerfano HRW 5/1/2012 GLF -1.09 KCM -0.72

Colorado Huerfano MUS 11/15/2007 GFK -2.44 GRF -2.29

Colorado Huerfano OAT 5/1/2009 MIN -0.22

Colorado Huerfano RAP 11/15/2007 GRF -2.29

Colorado Huerfano SAF 11/15/2007 COR -2.44 COL -2.14

Colorado Huerfano SEM 11/15/2007 PAR -0.96

Colorado Huerfano SOR 11/15/2007 GLF -0.85 SCD -0.62

Colorado Huerfano YC 11/15/2007 AMA -0.29 GLF -0.25

Colorado Huerfano YSB 11/15/2007 GLF -1.05

Colorado Jackson BRL 5/2/2011 WCD -1.25

Colorado Jackson CAN 11/15/2007 VEL -2.21

Colorado Jackson CRA 11/15/2007 CAR -2.48

Colorado Jackson FLX 11/15/2007 FAR -2.36 GRF -2.06

Colorado Jackson HRW 5/2/2011 GLF -1.14 KCM -0.77

Colorado Jackson MUS 11/15/2007 GFK -2.06 GRF -1.61

Colorado Jackson OAT 5/1/2009 MIN -0.22

Colorado Jackson RAP 11/15/2007 GRF -1.61

Colorado Jackson SAF 11/15/2007 COR -2.36 COL -1.54

Colorado Jackson SEM 11/15/2007 PAR -1.02

Colorado Jackson SOR 6/1/2011 WCD -1.62

Colorado Jackson YC 6/1/2012 PNW -0.50 WCD -0.75

Colorado Jackson YSB 11/15/2007 GLF -1.05

Colorado Jefferson BRL 11/15/2007 KCM -0.20

Colorado Jefferson CAN 11/15/2007 VEL -2.29

Colorado Jefferson CRA 11/15/2007 CAR -2.64

Colorado Jefferson FLX 11/15/2007 FAR -2.36 GRF -2.36

Colorado Jefferson HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Jefferson MUS 11/15/2007 GFK -2.14 GRF -1.91

Colorado Jefferson OAT 5/1/2009 MIN -0.22

Colorado Jefferson RAP 11/15/2007 GRF -1.91

Colorado Jefferson SAF 11/15/2007 COR -2.51 COL -1.76

Colorado Jefferson SEM 11/15/2007 PAR -1.02

Colorado Jefferson SOR 6/1/2011 GLF -0.92 SCD -0.69

Colorado Jefferson YC 11/15/2007 AMA -0.31 GLF -0.27
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Jefferson YSB 11/15/2007 GLF -1.05

Colorado Kiowa BRL 11/15/2007 KCM -0.25

Colorado Kiowa CAN 11/15/2007 VEL -2.44 RDW -2.51

Colorado Kiowa CRA 11/15/2007 CAR -2.80

Colorado Kiowa FLX 11/15/2007 FAR -2.36 RDW -2.51

Colorado Kiowa HRW 5/2/2011 GLF -1.05 KCM -0.68

Colorado Kiowa MUS 11/15/2007 GFK -2.14 GRF -2.29

Colorado Kiowa OAT 5/1/2009 MIN -0.22

Colorado Kiowa RAP 11/15/2007 GRF -2.29

Colorado Kiowa SAF 11/15/2007 COR -2.81 COL -2.06

Colorado Kiowa SEM 11/15/2007 PAR -0.84

Colorado Kiowa SOR 11/15/2007 GLF -0.96 SCD -0.73

Colorado Kiowa YC 11/15/2007 AMA -0.37 GLF -0.33

Colorado Kiowa YSB 11/15/2007 GLF -0.91

Colorado Kit Carson BRL 11/15/2007 KCM -0.25

Colorado Kit Carson CAN 11/15/2007 VEL -2.29 RDW -2.36

Colorado Kit Carson CRA 11/15/2007 CAR -2.56

Colorado Kit Carson FLX 11/15/2007 FAR -2.21 RDW -2.36

Colorado Kit Carson HRW 5/2/2011 GLF -1.05 KCM -0.68

Colorado Kit Carson MUS 11/15/2007 GFK -1.99 GRF -2.14

Colorado Kit Carson OAT 5/1/2009 MIN -0.22

Colorado Kit Carson RAP 11/15/2007 GRF -2.14

Colorado Kit Carson SAF 11/15/2007 COR -2.89 COL -1.84

Colorado Kit Carson SEM 11/15/2007 PAR -0.92

Colorado Kit Carson SOR 6/1/2011 GLF -1.13 SCD -0.90

Colorado Kit Carson YC 11/15/2007 AMA -0.43 GLF -0.39

Colorado Kit Carson YSB 11/15/2007 GLF -0.91

Colorado Lake BRL 5/2/2011 WCD -1.20

Colorado Lake CAN 11/15/2007 VEL -2.44

Colorado Lake CRA 11/15/2007 CAR -2.80

Colorado Lake FLX 11/15/2007 FAR -2.59 GRF -2.36

Colorado Lake HRW 5/1/2012 GLF -1.14 KCM -0.77

Colorado Lake MUS 11/15/2007 GFK -2.29 GRF -1.91

Colorado Lake OAT 5/1/2009 MIN -0.22

Colorado Lake RAP 11/15/2007 GRF -1.91

Colorado Lake SAF 11/15/2007 COR -2.29 COL -1.84

Colorado Lake SEM 11/15/2007 PAR -1.02

Colorado Lake SOR 6/1/2011 WCD -1.47

Colorado Lake YC 11/15/2007 PNW -0.47 WCD -0.72

Colorado Lake YSB 11/15/2007 GLF -1.05

Colorado La Plata BRL 5/2/2011 WCD -1.12

Colorado La Plata CAN 11/15/2007 VEL -2.89

Colorado La Plata CRA 11/15/2007 CAR -3.44

Colorado La Plata FLX 11/15/2007 FAR -3.04 GRF -2.66

Colorado La Plata HRW 5/1/2012 PNW -1.08 WCD -0.83

Colorado La Plata MUS 11/15/2007 GFK -2.74 GRF -2.21
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado La Plata OAT 5/1/2009 MIN -0.22

Colorado La Plata RAP 11/15/2007 GRF -2.21

Colorado La Plata SAF 11/15/2007 COR -1.99 COL -2.29

Colorado La Plata SEM 11/15/2007 PAR -1.02

Colorado La Plata SOR 11/15/2007 WCD -1.28

Colorado La Plata YC 11/15/2007 PNW -0.36 WCD -0.61

Colorado La Plata YSB 11/15/2007 GLF -1.05

Colorado Larimer BRL 11/15/2007 KCM -0.25

Colorado Larimer CAN 11/15/2007 VEL -2.14

Colorado Larimer CRA 11/15/2007 CAR -2.40

Colorado Larimer FLX 11/15/2007 FAR -2.21 GRF -2.14

Colorado Larimer HRS 5/1/2009 PNW -1.18

Colorado Larimer HRW 5/2/2011 GLF -1.05 KCM -0.68

Colorado Larimer MUS 11/15/2007 GFK -1.91 GRF -1.69

Colorado Larimer OAT 5/1/2009 MIN -0.22

Colorado Larimer RAP 11/15/2007 GRF -1.69

Colorado Larimer SAF 11/15/2007 COR -2.51 COL -1.54

Colorado Larimer SEM 11/15/2007 PAR -1.02

Colorado Larimer SOR 11/15/2007 GLF -0.96 SCD -0.73

Colorado Larimer YC 11/15/2007 AMA -0.33 GLF -0.29

Colorado Larimer YSB 11/15/2007 GLF -1.05

Colorado Las Animas BRL 11/15/2007 KCM -0.20

Colorado Las Animas CAN 11/15/2007 VEL -2.74

Colorado Las Animas CRA 11/15/2007 CAR -3.12

Colorado Las Animas FLX 11/15/2007 FAR -2.66 RDW -2.81

Colorado Las Animas HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Las Animas MUS 11/15/2007 GFK -2.44 GRF -2.36

Colorado Las Animas OAT 5/1/2009 MIN -0.22

Colorado Las Animas RAP 11/15/2007 GRF -2.36

Colorado Las Animas SAF 11/15/2007 COR -2.59 COL -2.21

Colorado Las Animas SEM 11/15/2007 PAR -0.88

Colorado Las Animas SOR 11/15/2007 GLF -0.84 SCD -0.61

Colorado Las Animas YC 11/15/2007 AMA -0.28 GLF -0.24

Colorado Las Animas YSB 11/15/2007 GLF -1.00

Colorado Lincoln BRL 11/15/2007 KCM -0.20

Colorado Lincoln CAN 11/15/2007 VEL -2.36 RDW -2.51

Colorado Lincoln CRA 11/15/2007 CAR -2.64

Colorado Lincoln FLX 11/15/2007 FAR -2.36 RDW -2.51

Colorado Lincoln HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Lincoln MUS 11/15/2007 GFK -2.06 GRF -2.14

Colorado Lincoln OAT 5/1/2009 MIN -0.22

Colorado Lincoln RAP 11/15/2007 GRF -2.14

Colorado Lincoln SAF 11/15/2007 COR -2.74 COL -1.91

Colorado Lincoln SEM 11/15/2007 PAR -0.96

Colorado Lincoln SOR 6/1/2011 GLF -1.11 SCD -0.88

Colorado Lincoln SWW 8/11/2010 PNW -0.96 WCD -0.86
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Lincoln YC 11/15/2007 AMA -0.38 GLF -0.34

Colorado Lincoln YSB 11/15/2007 GLF -1.00

Colorado Logan BRL 11/15/2007 KCM -0.25

Colorado Logan CAN 11/15/2007 VEL -1.99 RDW -2.21

Colorado Logan CRA 11/15/2007 CAR -2.16

Colorado Logan FLX 11/15/2007 FAR -1.99 RDW -2.21

Colorado Logan HRW 5/2/2011 GLF -1.06 KCM -0.69

Colorado Logan MUS 11/15/2007 GFK -1.76 GRF -1.84

Colorado Logan OAT 5/1/2009 MIN -0.22

Colorado Logan RAP 11/15/2007 GRF -1.84

Colorado Logan SAF 11/15/2007 COR -2.89 COL -1.54

Colorado Logan SEM 11/15/2007 PAR -1.02

Colorado Logan SOR 11/15/2007 GLF -1.24 SCD -1.01

Colorado Logan YC 11/15/2007 AMA -0.43 GLF -0.39

Colorado Logan YSB 11/15/2007 GLF -1.00

Colorado Mesa BRL 5/2/2011 WCD -1.11

Colorado Mesa CAN 11/15/2007 VEL -2.66

Colorado Mesa CRA 11/15/2007 CAR -3.12

Colorado Mesa FLX 11/15/2007 FAR -2.81 GRF -2.29

Colorado Mesa HRW 5/1/2012 GLF -1.26 KCM -0.89

Colorado Mesa MUS 11/15/2007 GFK -2.51 GRF -1.84

Colorado Mesa OAT 5/1/2009 MIN -0.22

Colorado Mesa RAP 11/15/2007 GRF -1.84

Colorado Mesa SAF 11/15/2007 COR -1.99 COL -1.99

Colorado Mesa SEM 11/15/2007 PAR -1.02

Colorado Mesa SOR 6/1/2012 WCD -1.22

Colorado Mesa SWW 11/15/2007 PNW -0.90 WCD -0.80

Colorado Mesa YC 11/15/2007 PNW -0.41 WCD -0.66

Colorado Mesa YSB 11/15/2007 GLF -1.00

Colorado Mineral BRL 5/2/2011 WCD -1.15

Colorado Mineral CAN 11/15/2007 VEL -2.81

Colorado Mineral CRA 11/15/2007 CAR -3.28

Colorado Mineral FLX 11/15/2007 FAR -2.89 GRF -2.59

Colorado Mineral HRW 5/1/2012 PNW -1.14 WCD -0.89

Colorado Mineral MUS 11/15/2007 GFK -2.59 GRF -2.14

Colorado Mineral OAT 5/1/2009 MIN -0.22

Colorado Mineral RAP 11/15/2007 GRF -2.14

Colorado Mineral SAF 11/15/2007 COR -2.14 COL -2.21

Colorado Mineral SEM 11/15/2007 PAR -1.02

Colorado Mineral SOR 6/1/2009 WCD -1.35

Colorado Mineral YC 11/15/2007 PNW -0.42 WCD -0.67

Colorado Mineral YSB 11/15/2007 GLF -1.05

Colorado Moffat BRL 5/2/2011 WCD -1.21

Colorado Moffat CAN 11/15/2007 VEL -2.36

Colorado Moffat CRA 11/15/2007 CAR -2.72

Colorado Moffat FLX 11/15/2007 FAR -2.59 GRF -1.99
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Moffat HRS 5/1/2009 PNW -1.15

Colorado Moffat HRW 5/1/2012 GLF -1.26 KCM -0.89

Colorado Moffat MUS 11/15/2007 GFK -2.21 GRF -1.54

Colorado Moffat OAT 5/1/2009 MIN -0.22

Colorado Moffat RAP 11/15/2007 GRF -1.54

Colorado Moffat SAF 11/15/2007 COR -2.06 COL -1.61

Colorado Moffat SEM 11/15/2007 PAR -1.02

Colorado Moffat SOR 11/15/2007 WCD -1.44

Colorado Moffat YC 11/15/2007 PNW -0.45 WCD -0.70

Colorado Moffat YSB 6/1/2012 GLF -1.04

Colorado Montezuma BRL 5/2/2011 WCD -1.11

Colorado Montezuma CAN 11/15/2007 VEL -2.96

Colorado Montezuma CRA 11/15/2007 CAR -3.52

Colorado Montezuma FLX 11/15/2007 FAR -3.11 GRF -2.59

Colorado Montezuma HRS 5/1/2009 PNW -1.30

Colorado Montezuma HRW 5/1/2012 PNW -1.08 WCD -0.83

Colorado Montezuma MUS 11/15/2007 GFK -2.81 GRF -2.14

Colorado Montezuma OAT 5/1/2009 MIN -0.22

Colorado Montezuma RAP 11/15/2007 GRF -2.14

Colorado Montezuma SAF 11/15/2007 COL -2.21 COR -1.84

Colorado Montezuma SEM 11/15/2007 PAR -1.02

Colorado Montezuma SOR 6/1/2011 WCD -1.17

Colorado Montezuma YC 11/15/2007 PNW -0.35 WCD -0.60

Colorado Montezuma YSB 11/15/2007 GLF -1.00

Colorado Montrose BRL 5/2/2011 WCD -1.11

Colorado Montrose CAN 11/15/2007 VEL -2.74

Colorado Montrose CRA 11/15/2007 CAR -3.20

Colorado Montrose FLX 11/15/2007 FAR -2.89 GRF -2.44

Colorado Montrose HRW 5/1/2012 GLF -1.21 KCM -0.84

Colorado Montrose MUS 11/15/2007 GFK -2.59 GRF -1.99

Colorado Montrose OAT 5/1/2009 MIN -0.22

Colorado Montrose RAP 11/15/2007 GRF -1.99

Colorado Montrose SAF 11/15/2007 COR -1.99 COL -2.06

Colorado Montrose SEM 11/15/2007 PAR -1.02

Colorado Montrose SOR 6/1/2011 WCD -1.17

Colorado Montrose SWW 11/15/2007 PNW -0.90 WCD -0.80

Colorado Montrose YC 11/15/2007 PNW -0.38 WCD -0.63

Colorado Montrose YSB 11/15/2007 GLF -1.00

Colorado Morgan BRL 11/15/2007 KCM -0.25

Colorado Morgan CAN 11/15/2007 VEL -2.14

Colorado Morgan CRA 11/15/2007 CAR -2.40

Colorado Morgan FLX 11/15/2007 FAR -2.14 RDW -2.36

Colorado Morgan HRS 5/1/2009 PNW -1.18

Colorado Morgan HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Morgan MUS 11/15/2007 GFK -1.84 GRF -1.91

Colorado Morgan OAT 5/1/2009 MIN -0.22
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Morgan RAP 11/15/2007 GRF -1.91

Colorado Morgan SAF 11/15/2007 COR -2.74 COL -1.61

Colorado Morgan SEM 11/15/2007 PAR -1.02

Colorado Morgan SOR 11/15/2007 GLF -1.10 SCD -0.87

Colorado Morgan YC 11/15/2007 AMA -0.38 GLF -0.34

Colorado Morgan YSB 11/15/2007 GLF -1.05

Colorado Otero BRL 11/15/2007 KCM -0.20

Colorado Otero CAN 11/15/2007 VEL -2.59 RDW -2.66

Colorado Otero CRA 11/15/2007 CAR -2.96

Colorado Otero FLX 11/15/2007 FAR -2.59 RDW -2.66

Colorado Otero HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Otero MUS 11/15/2007 GFK -2.29 GRF -2.29

Colorado Otero OAT 5/1/2009 MIN -0.22

Colorado Otero RAP 11/15/2007 GRF -2.29

Colorado Otero SAF 11/15/2007 COR -2.66 COL -2.14

Colorado Otero SEM 11/15/2007 PAR -0.88

Colorado Otero SOR 11/15/2007 GLF -0.95 SCD -0.72

Colorado Otero YC 11/15/2007 AMA -0.27 GLF -0.23

Colorado Otero YSB 11/15/2007 GLF -1.00

Colorado Ouray BRL 5/2/2011 WCD -1.12

Colorado Ouray CAN 11/15/2007 VEL -2.74

Colorado Ouray CRA 11/15/2007 CAR -3.20

Colorado Ouray FLX 11/15/2007 FAR -2.89 GRF -2.51

Colorado Ouray HRW 5/1/2012 GLF -1.21 KCM -0.84

Colorado Ouray MUS 11/15/2007 GFK -2.59 GRF -2.06

Colorado Ouray OAT 5/1/2009 MIN -0.22

Colorado Ouray RAP 11/15/2007 GRF -2.06

Colorado Ouray SAF 11/15/2007 COR -2.06 COL -2.14

Colorado Ouray SEM 11/15/2007 PAR -1.02

Colorado Ouray SOR 11/15/2007 WCD -1.28

Colorado Ouray YC 11/15/2007 PNW -0.40 WCD -0.65

Colorado Ouray YSB 11/15/2007 GLF -1.05

Colorado Park BRL 11/15/2007 KCM -0.20

Colorado Park CAN 11/15/2007 VEL -2.44

Colorado Park CRA 11/15/2007 CAR -2.80

Colorado Park FLX 11/15/2007 FAR -2.51 GRF -2.36

Colorado Park HRW 5/1/2012 GLF -1.09 KCM -0.72

Colorado Park MUS 11/15/2007 GFK -2.21 GRF -1.91

Colorado Park OAT 5/1/2009 MIN -0.22

Colorado Park RAP 11/15/2007 GRF -1.91

Colorado Park SAF 11/15/2007 COR -2.36 COL -1.91

Colorado Park SEM 11/15/2007 PAR -1.02

Colorado Park SOR 11/15/2007 GLF -0.77 SCD -0.54

Colorado Park YC 11/15/2007 AMA -0.31 GLF -0.27

Colorado Park YSB 11/15/2007 GLF -1.05

Colorado Phillips BRL 11/15/2007 KCM -0.25
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Phillips CAN 11/15/2007 VEL -1.99 RDW -2.14

Colorado Phillips CRA 11/15/2007 CAR -2.16

Colorado Phillips FLX 11/15/2007 FAR -1.99 RDW -2.14

Colorado Phillips HRW 5/2/2011 GLF -1.06 KCM -0.69

Colorado Phillips MUS 11/15/2007 GFK -1.69 GRF -1.99

Colorado Phillips OAT 5/1/2009 MIN -0.22

Colorado Phillips RAP 11/15/2007 GRF -1.99

Colorado Phillips SAF 11/15/2007 COR -2.96 COL -1.61

Colorado Phillips SEM 11/15/2007 PAR -1.00

Colorado Phillips SOR 11/15/2007 GLF -1.24 SCD -1.01

Colorado Phillips YC 11/15/2007 AMA -0.50 GLF -0.46

Colorado Phillips YSB 11/15/2007 GLF -1.00

Colorado Pitkin BRL 5/2/2011 WCD -1.16

Colorado Pitkin CAN 11/15/2007 VEL -2.51

Colorado Pitkin CRA 11/15/2007 CAR -2.88

Colorado Pitkin FLX 11/15/2007 FAR -2.59 GRF -2.29

Colorado Pitkin HRS 5/1/2009 PNW -1.20

Colorado Pitkin HRW 5/1/2012 GLF -1.23 KCM -0.86

Colorado Pitkin MUS 11/15/2007 GFK -2.29 GRF -1.84

Colorado Pitkin OAT 5/1/2009 MIN -0.22

Colorado Pitkin RAP 11/15/2007 GRF -1.84

Colorado Pitkin SAF 11/15/2007 COR -2.21 COL -1.91

Colorado Pitkin SEM 11/15/2007 PAR -1.02

Colorado Pitkin SOR 6/1/2011 WCD -1.32

Colorado Pitkin YC 11/15/2007 PNW -0.46 WCD -0.71

Colorado Pitkin YSB 11/15/2007 GLF -1.05

Colorado Prowers BRL 11/15/2007 KCM -0.25

Colorado Prowers CAN 11/15/2007 RDW -2.51 VEL -2.59

Colorado Prowers CRA 11/15/2007 CAR -2.88

Colorado Prowers FLX 11/15/2007 FAR -2.44 RDW -2.51

Colorado Prowers HRW 5/2/2011 GLF -1.05 KCM -0.68

Colorado Prowers MUS 11/15/2007 GFK -2.21 GRF -2.44

Colorado Prowers OAT 5/1/2009 MIN -0.22

Colorado Prowers RAP 11/15/2007 GRF -2.44

Colorado Prowers SAF 11/15/2007 COR -2.89 COL -2.14

Colorado Prowers SEM 11/15/2007 PAR -0.80

Colorado Prowers SOR 11/15/2007 GLF -0.92 SCD -0.69

Colorado Prowers YC 11/15/2007 AMA -0.32 GLF -0.28

Colorado Prowers YSB 11/15/2007 GLF -0.88

Colorado Pueblo BRL 11/15/2007 KCM -0.20

Colorado Pueblo CAN 11/15/2007 VEL -2.59

Colorado Pueblo CRA 11/15/2007 CAR -2.96

Colorado Pueblo FLX 11/15/2007 FAR -2.59 GRF -2.66

Colorado Pueblo HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Pueblo MUS 11/15/2007 GFK -2.29 GRF -2.21

Colorado Pueblo OAT 5/1/2009 MIN -0.22
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Pueblo RAP 11/15/2007 GRF -2.21

Colorado Pueblo SAF 11/15/2007 COR -2.59 COL -2.06

Colorado Pueblo SEM 11/15/2007 PAR -0.96

Colorado Pueblo SOR 11/15/2007 GLF -0.96 SCD -0.73

Colorado Pueblo YC 11/15/2007 AMA -0.29 GLF -0.25

Colorado Pueblo YSB 11/15/2007 GLF -1.05

Colorado Rio Blanco BRL 5/2/2011 WCD -1.21

Colorado Rio Blanco CAN 11/15/2007 VEL -2.44

Colorado Rio Blanco CRA 11/15/2007 CAR -2.88

Colorado Rio Blanco FLX 11/15/2007 FAR -2.66 GRF -2.06

Colorado Rio Blanco HRW 5/1/2012 GLF -1.26 KCM -0.89

Colorado Rio Blanco MUS 11/15/2007 GFK -2.36 GRF -1.61

Colorado Rio Blanco OAT 5/1/2009 MIN -0.22

Colorado Rio Blanco RAP 11/15/2007 GRF -1.61

Colorado Rio Blanco SAF 11/15/2007 COR -2.06 COL -1.76

Colorado Rio Blanco SEM 11/15/2007 PAR -1.02

Colorado Rio Blanco SOR 11/15/2007 WCD -1.41

Colorado Rio Blanco YC 11/15/2007 PNW -0.42 WCD -0.67

Colorado Rio Blanco YSB 11/15/2007 GLF -1.00

Colorado Rio Grande BRL 11/15/2007 KCM -0.15

Colorado Rio Grande CAN 11/15/2007 VEL -2.74

Colorado Rio Grande CRA 11/15/2007 CAR -3.20

Colorado Rio Grande HAD 5/1/2009 WCD -0.85

Colorado Rio Grande FLX 11/15/2007 FAR -2.81 GRF -2.66

Colorado Rio Grande HRS 5/1/2009 PNW -1.30

Colorado Rio Grande HRW 5/1/2012 GLF -1.18 KCM -0.81

Colorado Rio Grande MUS 11/15/2007 GFK -2.59 GRF -2.21

Colorado Rio Grande OAT 5/1/2009 MIN -0.22

Colorado Rio Grande RAP 11/15/2007 GRF -2.21

Colorado Rio Grande SAF 11/15/2007 COR -2.21 COL -2.21

Colorado Rio Grande SEM 11/15/2007 PAR -1.02

Colorado Rio Grande SOR 6/1/2009 GLF -0.66 SCD -0.43

Colorado Rio Grande SWW 11/15/2007 PNW -1.01 WCD -0.91

Colorado Rio Grande YC 11/15/2007 AMA -0.24 GLF -0.20

Colorado Rio Grande YSB 11/15/2007 GLF -1.05

Colorado Routt BRL 5/2/2011 WCD -1.21

Colorado Routt CAN 11/15/2007 VEL -2.29

Colorado Routt CRA 11/15/2007 CAR -2.64

Colorado Routt FLX 11/15/2007 FAR -2.44 GRF -2.06

Colorado Routt HRS 5/1/2009 PNW -1.20

Colorado Routt HRW 5/1/2012 GLF -1.24 KCM -0.87

Colorado Routt MUS 11/15/2007 GFK -2.14 GRF -1.61

Colorado Routt OAT 5/1/2009 MIN -0.22

Colorado Routt RAP 11/15/2007 GRF -1.61

Colorado Routt SAF 11/15/2007 COR -2.29 COL -1.61

Colorado Routt SEM 11/15/2007 PAR -1.02
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Routt SOR 6/1/2011 WCD -1.47

Colorado Routt YC 11/15/2007 PNW -0.46 WCD -0.71

Colorado Routt YSB 11/15/2007 GLF -1.05

Colorado Saguache BRL 11/15/2007 KCM -0.15

Colorado Saguache CAN 11/15/2007 VEL -2.66

Colorado Saguache CRA 11/15/2007 CAR -3.12

Colorado Saguache HAD 5/1/2009 WCD -0.85

Colorado Saguache FLX 11/15/2007 FAR -2.74 GRF -2.59

Colorado Saguache HRS 5/1/2009 PNW -1.30

Colorado Saguache HRW 5/1/2012 GLF -1.18 KCM -0.81

Colorado Saguache MUS 11/15/2007 GFK -2.44 GRF -2.14

Colorado Saguache OAT 5/1/2009 MIN -0.22

Colorado Saguache RAP 11/15/2007 GRF -2.14

Colorado Saguache SAF 11/15/2007 COR -2.29 COL -2.14

Colorado Saguache SEM 11/15/2007 PAR -1.02

Colorado Saguache SOR 11/15/2007 GLF -0.69 SCD -0.46

Colorado Saguache SWW 11/15/2007 PNW -1.01 WCD -0.91

Colorado Saguache YC 11/15/2007 AMA -0.28 GLF -0.24

Colorado Saguache YSB 11/15/2007 GLF -1.05

Colorado San Juan BRL 5/2/2011 WCD -1.12

Colorado San Juan CAN 11/15/2007 VEL -2.81

Colorado San Juan CRA 11/15/2007 CAR -3.28

Colorado San Juan FLX 11/15/2007 FAR -2.96 GRF -2.59

Colorado San Juan HRW 5/1/2012 PNW -1.14 WCD -0.89

Colorado San Juan MUS 11/15/2007 GFK -2.66 GRF -2.14

Colorado San Juan OAT 5/1/2009 MIN -0.22

Colorado San Juan RAP 11/15/2007 GRF -2.14

Colorado San Juan SAF 11/15/2007 COR -2.06 COL -2.21

Colorado San Juan SEM 11/15/2007 PAR -1.02

Colorado San Juan SOR 11/15/2007 WCD -1.28

Colorado San Juan YC 11/15/2007 PNW -0.38 WCD -0.63

Colorado San Juan YSB 11/15/2007 GLF -1.05

Colorado San Miguel BRL 5/2/2011 WCD -1.11

Colorado San Miguel CAN 11/15/2007 VEL -2.81

Colorado San Miguel CRA 11/15/2007 CAR -3.36

Colorado San Miguel FLX 11/15/2007 FAR -2.96 GRF -2.51

Colorado San Miguel HRW 8/8/2016 PNW -1.14 WCD -0.89

Colorado San Miguel MUS 11/15/2007 GFK -2.66 GRF -2.06

Colorado San Miguel OAT 5/1/2009 MIN -0.22

Colorado San Miguel RAP 11/15/2007 GRF -2.06

Colorado San Miguel SAF 11/15/2007 COL -2.21 COR -1.91

Colorado San Miguel SEM 11/15/2007 PAR -1.02

Colorado San Miguel SOR 6/1/2011 WCD -1.17

Colorado San Miguel YC 11/15/2007 PNW -0.37 WCD -0.62

Colorado San Miguel YSB 11/15/2007 GLF -1.00

Colorado Sedgwick BRL 11/15/2007 KCM -0.25
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Sedgwick CAN 11/15/2007 VEL -1.99 RDW -2.14

Colorado Sedgwick CRA 11/15/2007 CAR -2.08

Colorado Sedgwick FLX 11/15/2007 FAR -1.91 RDW -2.14

Colorado Sedgwick HRW 5/2/2011 GLF -1.06 KCM -0.69

Colorado Sedgwick MUS 11/15/2007 GFK -1.61 GRF -1.91

Colorado Sedgwick OAT 5/1/2009 MIN -0.22

Colorado Sedgwick RAP 11/15/2007 GRF -1.91

Colorado Sedgwick SAF 11/15/2007 COR -2.96 COL -1.54

Colorado Sedgwick SEM 11/15/2007 PAR -1.00

Colorado Sedgwick SOR 11/15/2007 GLF -1.31 SCD -1.08

Colorado Sedgwick SRW 11/15/2007 GLF -0.74 KCM -0.47

Colorado Sedgwick YC 11/15/2007 AMA -0.50 GLF -0.46

Colorado Sedgwick YSB 11/15/2007 GLF -1.00

Colorado Summit BRL 5/2/2011 WCD -1.20

Colorado Summit CAN 11/15/2007 VEL -2.36

Colorado Summit CRA 11/15/2007 CAR -2.72

Colorado Summit FLX 11/15/2007 FAR -2.44 GRF -2.29

Colorado Summit HRW 5/1/2012 GLF -1.18 KCM -0.81

Colorado Summit MUS 11/15/2007 GFK -2.14 GRF -1.84

Colorado Summit OAT 5/1/2009 MIN -0.22

Colorado Summit RAP 11/15/2007 GRF -1.84

Colorado Summit SAF 11/15/2007 COR -2.36 COL -1.76

Colorado Summit SEM 11/15/2007 PAR -1.02

Colorado Summit SOR 11/15/2007 WCD -1.50

Colorado Summit YC 11/15/2007 PNW -0.47 WCD -0.72

Colorado Summit YSB 11/15/2007 GLF -1.05

Colorado Teller BRL 11/15/2007 KCM -0.20

Colorado Teller CAN 11/15/2007 VEL -2.44

Colorado Teller CRA 11/15/2007 CAR -2.80

Colorado Teller FLX 11/15/2007 FAR -2.51 GRF -2.51

Colorado Teller HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Teller MUS 11/15/2007 GFK -2.21 GRF -2.06

Colorado Teller OAT 5/1/2009 MIN -0.22

Colorado Teller RAP 11/15/2007 GRF -2.06

Colorado Teller SAF 11/15/2007 COR -2.44 COL -1.91

Colorado Teller SEM 11/15/2007 PAR -1.02

Colorado Teller SOR 11/15/2007 GLF -0.89 SCD -0.66

Colorado Teller YC 11/15/2007 AMA -0.31 GLF -0.27

Colorado Teller YSB 11/15/2007 GLF -1.05

Colorado Washington BRL 11/15/2007 KCM -0.25

Colorado Washington CAN 11/15/2007 VEL -2.14 RDW -2.36

Colorado Washington CRA 11/15/2007 CAR -2.40

Colorado Washington FLX 11/15/2007 FAR -2.14 RDW -2.36

Colorado Washington HRS 5/1/2009 PNW -1.18

Colorado Washington HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Washington MUS 11/15/2007 GFK -1.84 GRF -1.99
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Washington OAT 5/1/2009 MIN -0.22

Colorado Washington RAP 11/15/2007 GRF -1.99

Colorado Washington SAF 11/15/2007 COR -2.81 COL -1.69

Colorado Washington SEM 11/15/2007 PAR -1.00

Colorado Washington SOR 6/1/2011 GLF -1.11 SCD -0.88

Colorado Washington SWW 11/15/2007 PNW -0.91 WCD -0.81

Colorado Washington YC 11/15/2007 AMA -0.37 GLF -0.33

Colorado Washington YSB 11/15/2007 GLF -1.00

Colorado Weld BRL 11/15/2007 KCM -0.30

Colorado Weld CAN 11/15/2007 VEL -2.06

Colorado Weld CRA 11/15/2007 CAR -2.32

Colorado Weld FLX 11/15/2007 FAR -2.14 GRF -2.21

Colorado Weld HRS 5/2/2011 PNW -1.15

Colorado Weld HRW 5/2/2011 GLF -1.00 KCM -0.63

Colorado Weld MUS 11/15/2007 GFK -1.84 GRF -1.76

Colorado Weld OAT 5/1/2009 MIN -0.22

Colorado Weld RAP 11/15/2007 GRF -1.76

Colorado Weld SAF 11/15/2007 COR -2.66 COL -1.54

Colorado Weld SEM 11/15/2007 PAR -1.02

Colorado Weld SOR 6/1/2011 GLF -1.09 SCD -0.86

Colorado Weld SWW 11/15/2007 PNW -0.90 WCD -0.80

Colorado Weld YC 6/1/2011 AMA -0.38 GLF -0.34

Colorado Weld YSB 11/15/2007 GLF -1.05

Colorado Yuma BRL 11/15/2007 KCM -0.25

Colorado Yuma CAN 11/15/2007 VEL -2.14 RDW -2.21

Colorado Yuma CRA 11/15/2007 CAR -2.32

Colorado Yuma FLX 11/15/2007 FAR -2.06 RDW -2.21

Colorado Yuma HRS 5/1/2009 PNW -1.18

Colorado Yuma HRW 5/2/2011 GLF -1.06 KCM -0.69

Colorado Yuma MUS 11/15/2007 GFK -1.84 GRF -2.06

Colorado Yuma OAT 5/1/2009 MIN -0.22

Colorado Yuma RAP 11/15/2007 GRF -2.06

Colorado Yuma SAF 11/15/2007 COR -2.96 COL -1.69

Colorado Yuma SEM 11/15/2007 PAR -0.96

Colorado Yuma SOR 11/15/2007 GLF -1.22 SCD -0.99

Colorado Yuma SWW 11/15/2007 PNW -0.96 WCD -0.86

Colorado Yuma YC 11/15/2007 AMA -0.45 GLF -0.41

Colorado Yuma YSB 11/15/2007 GLF -0.91

Colorado Adams SUN 1/26/2023 LAM -0.90 FAR -2.29

Colorado Alamosa SUN 1/26/2023 LAM -1.25 FAR -2.81

Colorado Arapahoe SUN 1/26/2023 LAM -0.90 FAR -2.29

Colorado Archuleta SUN 1/26/2023 LAM -1.47 FAR -2.96

Colorado Baca SUN 1/26/2023 LAM -0.90

Colorado Bent SUN 1/26/2023 LAM -0.83 FAR -2.51

Colorado Boulder SUN 1/26/2023 LAM -1.11 FAR -2.29

Colorado Broomfield SUN 1/26/2023 LAM -0.90 FAR -2.29
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Chaffee SUN 1/26/2023 LAM -1.18 FAR -2.59

Colorado Cheyenne SUN 1/26/2023 LAM -0.68 FAR -2.29

Colorado Clear Creek SUN 1/26/2023 LAM -1.11 FAR -2.44

Colorado Conejos SUN 1/26/2023 LAM -1.32 FAR -2.89

Colorado Costilla SUN 1/26/2023 LAM -1.18 FAR -2.81

Colorado Crowley SUN 1/26/2023 LAM -0.90 FAR -2.51

Colorado Custer SUN 1/26/2023 LAM -1.11 FAR -2.66

Colorado Delta SUN 1/26/2023 LAM -1.47 FAR -2.74

Colorado Denver SUN 1/26/2023 LAM -1.04 FAR -2.36

Colorado Dolores SUN 1/26/2023 LAM -1.62 FAR -3.04

Colorado Douglas SUN 1/26/2023 LAM -0.97 FAR -2.44

Colorado Eagle SUN 1/26/2023 LAM -1.25 FAR -2.51

Colorado Elbert SUN 1/26/2023 LAM -0.90 FAR -2.36

Colorado El Paso SUN 1/26/2023 LAM -0.97 FAR -2.44

Colorado Fremont SUN 1/26/2023 LAM -1.11 FAR -2.59

Colorado Garfield SUN 1/26/2023 LAM -1.47 FAR -2.66

Colorado Gilpin SUN 1/26/2023 LAM -1.11 FAR -2.36

Colorado Grand SUN 1/26/2023 LAM -1.18 FAR -2.36

Colorado Gunnison SUN 1/26/2023 LAM -1.32 FAR -2.74

Colorado Hinsdale SUN 1/26/2023 LAM -1.40 FAR -2.89

Colorado Huerfano SUN 1/26/2023 LAM -1.11 FAR -2.66

Colorado Jackson SUN 1/26/2023 LAM -1.25 FAR -2.36

Colorado Jefferson SUN 1/26/2023 LAM -1.04 FAR -2.36

Colorado Kiowa SUN 1/26/2023 LAM -0.76 FAR -2.36

Colorado Kit Carson SUN 1/26/2023 LAM -0.61 FAR -2.21

Colorado Lake SUN 1/26/2023 LAM -1.18 FAR -2.59

Colorado La Plata SUN 1/26/2023 LAM -1.55 FAR -3.04

Colorado Larimer SUN 1/26/2023 LAM -1.11 FAR -2.21

Colorado Las Animas SUN 1/26/2023 LAM -1.04 FAR -2.66

Colorado Lincoln SUN 1/26/2023 LAM -0.83 FAR -2.36

Colorado Logan SUN 1/26/2023 LAM -0.83 FAR -2.24

Colorado Mesa SUN 1/26/2023 LAM -1.55 FAR -2.81

Colorado Mineral SUN 1/26/2023 LAM -1.40 FAR -2.89

Colorado Moffat SUN 1/26/2023 LAM -1.55 FAR -2.59

Colorado Montezuma SUN 1/26/2023 LAM -1.62 FAR -3.11

Colorado Montrose SUN 1/26/2023 LAM -1.55 FAR -2.89

Colorado Morgan SUN 1/26/2023 LAM -0.90 FAR -2.14

Colorado Otero SUN 1/26/2023 LAM -0.90 FAR -2.59

Colorado Ouray SUN 1/26/2023 LAM -1.47 FAR -2.89

Colorado Park SUN 1/26/2023 LAM -1.11 FAR -2.51

Colorado Phillips SUN 1/26/2023 LAM -0.76 FAR -2.26

Colorado Pitkin SUN 1/26/2023 LAM -1.32 FAR -2.59

Colorado Prowers SUN 1/26/2023 LAM -0.83 FAR -2.44

Colorado Pueblo SUN 1/26/2023 LAM -0.97 FAR -2.59

Colorado Rio Blanco SUN 1/26/2023 LAM -1.47 FAR -2.66

Colorado Rio Grande SUN 1/26/2023 LAM -1.32 FAR -2.81
State Name County Name Commodity Change Date Market 1 Differential 1 Market 2 Differential 2

Colorado Routt SUN 1/26/2023 LAM -1.32 FAR -2.44

Colorado Saguache SUN 1/26/2023 LAM -1.25 FAR -2.74

Colorado San Juan SUN 1/26/2023 LAM -1.47 FAR -2.96

Colorado San Miguel SUN 1/26/2023 LAM -1.55 FAR -2.96

Colorado Sedgwick SUN 1/26/2023 LAM -0.83 FAR -2.24

Colorado Summit SUN 1/26/2023 LAM -1.18 FAR -2.44

Colorado Teller SUN 1/26/2023 LAM -1.04 FAR -2.51

Colorado Washington SUN 1/26/2023 LAM -0.76 FAR -2.26

Colorado Weld SUN 1/26/2023 LAM -0.97 FAR -2.14

Colorado Yuma SUN 1/26/2023 LAM -0.68 FAR -2.26