| NYMEX Light Sweet Crude, Contract 1 | NYMEX Light Sweet Crude, Contract 2 | NYMEX Light Sweet Crude, Contract 3 | NYMEX Light Sweet Crude, Contract 4 | |
| 1/2/1997 | 25.69 | 25.07 | 24.38 | 23.73 |
| 1/3/1997 | 25.59 | 24.99 | 24.32 | 23.68 |
| 1/6/1997 | 26.37 | 25.66 | 24.95 | 24.27 |
| 1/7/1997 | 26.23 | 25.54 | 24.83 | 24.15 |
| 1/8/1997 | 26.62 | 25.93 | 25.24 | 24.56 |
| 1/9/1997 | 26.37 | 25.72 | 25.03 | 24.35 |
| 1/10/1997 | 26.09 | 25.49 | 24.84 | 24.19 |
| 1/13/1997 | 25.19 | 24.71 | 24.14 | 23.55 |
| 1/14/1997 | 25.11 | 24.62 | 24.07 | 23.51 |
| 1/15/1997 | 25.95 | 25.34 | 24.77 | 24.22 |
| 1/16/1997 | 25.52 | 24.82 | 24.26 | 23.71 |
| 1/17/1997 | 25.41 | 24.43 | 23.88 | 23.37 |
| 1/20/1997 | 25.23 | 24.43 | 23.89 | 23.40 |
| 1/21/1997 | 24.80 | 24.22 | 23.71 | 23.25 |
| 1/22/1997 | 24.24 | 23.76 | 23.30 | 22.83 |
| 1/23/1997 | 24.18 | 23.67 | 23.19 | 22.72 |
| 1/24/1997 | 24.05 | 23.53 | 23.05 | 22.59 |
| 1/27/1997 | 23.94 | 23.44 | 22.98 | 22.55 |
| 1/28/1997 | 23.90 | 23.42 | 22.96 | 22.53 |
| 1/29/1997 | 24.47 | 23.93 | 23.42 | 22.96 |
| 1/30/1997 | 24.87 | 24.35 | 23.80 | 23.32 |
| 1/31/1997 | 24.15 | 23.71 | 23.19 | 22.74 |
| 2/3/1997 | 24.15 | 23.74 | 23.25 | 22.83 |
| 2/4/1997 | 24.02 | 23.61 | 23.16 | 22.75 |
| 2/5/1997 | 23.91 | 23.52 | 23.12 | 22.73 |
| 2/6/1997 | 23.10 | 22.74 | 22.42 | 22.10 |
| 2/7/1997 | 22.23 | 22.07 | 21.80 | 21.53 |
| 2/10/1997 | 22.46 | 22.25 | 21.98 | 21.73 |
| 2/11/1997 | 22.42 | 22.23 | 21.95 | 21.69 |
| 2/12/1997 | 21.86 | 21.63 | 21.34 | 21.09 |
| 2/13/1997 | 22.02 | 21.74 | 21.44 | 21.19 |
| 2/14/1997 | 22.41 | 22.03 | 21.71 | 21.44 |
| 2/17/1997 | ||||
| 2/18/1997 | 22.52 | 22.12 | 21.80 | 21.51 |
| 2/19/1997 | 22.79 | 22.33 | 21.94 | 21.62 |
| 2/20/1997 | 21.98 | 21.69 | 21.39 | 21.10 |
| 2/21/1997 | 21.39 | 21.07 | 20.81 | 20.59 |
| 2/24/1997 | 20.71 | 20.46 | 20.27 | 20.10 |
| 2/25/1997 | 21.00 | 20.70 | 20.47 | 20.28 |
| 2/26/1997 | 21.11 | 20.83 | 20.62 | 20.44 |
| 2/27/1997 | 20.89 | 20.64 | 20.42 | 20.24 |
| 2/28/1997 | 20.30 | 20.04 | 19.86 | 19.73 |
| 3/3/1997 | 20.25 | 20.03 | 19.88 | 19.76 |
| 3/4/1997 | 20.66 | 20.47 | 20.31 | 20.19 |
| 3/5/1997 | 20.40 | 20.29 | 20.17 | 20.00 |
| 3/6/1997 | 20.94 | 20.76 | 20.56 | 20.41 |
| 3/7/1997 | 21.28 | 21.24 | 21.06 | 20.90 |
| 3/10/1997 | 20.49 | 20.55 | 20.55 | 20.44 |
| 3/11/1997 | 20.11 | 20.29 | 20.30 | 20.25 |
| 3/12/1997 | 20.62 | 20.68 | 20.68 | 20.61 |
| 3/13/1997 | 20.70 | 20.76 | 20.73 | 20.65 |
| 3/14/1997 | 21.29 | 21.20 | 21.09 | 20.97 |
| 3/17/1997 | 20.92 | 20.85 | 20.79 | 20.68 |
| 3/18/1997 | 22.06 | 21.77 | 21.64 | 21.49 |
| 3/19/1997 | 22.04 | 21.82 | 21.63 | 21.46 |
| 3/20/1997 | 22.32 | 21.85 | 21.67 | 21.48 |
| 3/21/1997 | 21.51 | 21.40 | 21.24 | 21.10 |
| 3/24/1997 | 21.06 | 21.02 | 20.92 | 20.81 |
| 3/25/1997 | 20.99 | 20.97 | 20.89 | 20.79 |
| 3/26/1997 | 20.64 | 20.63 | 20.55 | 20.48 |
| 3/27/1997 | 20.70 | 20.69 | 20.63 | 20.58 |
| 3/28/1997 | ||||
| 3/31/1997 | 20.41 | 20.42 | 20.38 | 20.34 |
| 4/1/1997 | 20.28 | 20.26 | 20.23 | 20.22 |
| 4/2/1997 | 19.47 | 19.54 | 19.59 | 19.62 |
| 4/3/1997 | 19.47 | 19.57 | 19.63 | 19.66 |
| 4/4/1997 | 19.12 | 19.22 | 19.30 | 19.35 |
| 4/7/1997 | 19.23 | 19.33 | 19.37 | 19.41 |
| 4/8/1997 | 19.35 | 19.45 | 19.49 | 19.53 |
| 4/9/1997 | 19.27 | 19.39 | 19.43 | 19.47 |
| 4/10/1997 | 19.57 | 19.68 | 19.71 | 19.74 |
| 4/11/1997 | 19.53 | 19.62 | 19.63 | 19.64 |
| 4/14/1997 | 19.90 | 19.91 | 19.92 | 19.91 |
| 4/15/1997 | 19.83 | 19.78 | 19.80 | 19.80 |
| 4/16/1997 | 19.35 | 19.30 | 19.37 | 19.40 |
| 4/17/1997 | 19.42 | 19.34 | 19.40 | 19.45 |
| 4/18/1997 | 19.91 | 19.67 | 19.65 | 19.65 |
| 4/21/1997 | 20.38 | 20.07 | 19.98 | 19.93 |
| 4/22/1997 | 19.60 | 19.59 | 19.57 | 19.53 |
| 4/23/1997 | 19.73 | 19.74 | 19.74 | 19.73 |
| 4/24/1997 | 20.03 | 19.99 | 19.96 | 19.92 |
| 4/25/1997 | 19.99 | 20.00 | 19.98 | 19.94 |
| 4/28/1997 | 19.91 | 19.91 | 19.90 | 19.88 |
| 4/29/1997 | 20.44 | 20.39 | 20.33 | 20.27 |
| 4/30/1997 | 20.21 | 20.21 | 20.16 | 20.12 |
| 5/1/1997 | 19.91 | 19.96 | 19.93 | 19.90 |
| 5/2/1997 | 19.60 | 19.69 | 19.70 | 19.70 |
| 5/5/1997 | 19.63 | 19.71 | 19.72 | 19.72 |
| 5/6/1997 | 19.66 | 19.75 | 19.78 | 19.79 |
| 5/7/1997 | 19.62 | 19.73 | 19.75 | 19.74 |
| 5/8/1997 | 20.34 | 20.34 | 20.28 | 20.23 |
| 5/9/1997 | 20.43 | 20.41 | 20.31 | 20.24 |
| 5/12/1997 | 21.38 | 21.26 | 21.08 | 20.96 |
| 5/13/1997 | 21.37 | 21.28 | 21.12 | 20.99 |
| 5/14/1997 | 21.39 | 21.29 | 21.16 | 21.04 |
| 5/15/1997 | 21.30 | 21.29 | 21.16 | 21.04 |
| 5/16/1997 | 22.12 | 22.18 | 22.02 | 21.86 |
| 5/19/1997 | 21.59 | 21.90 | 21.81 | 21.66 |
| 5/20/1997 | 21.19 | 21.59 | 21.59 | 21.48 |
| 5/21/1997 | 21.86 | 21.87 | 21.76 | 21.64 |
| 5/22/1997 | 21.86 | 21.87 | 21.75 | 21.60 |
| 5/23/1997 | 21.63 | 21.66 | 21.56 | 21.43 |
| 5/27/1997 | 20.79 | 20.84 | 20.82 | 20.75 |
| 5/28/1997 | 20.79 | 20.90 | 20.88 | 20.81 |
| 5/29/1997 | 20.97 | 21.07 | 21.05 | 20.98 |
| 5/30/1997 | 20.88 | 21.01 | 21.01 | 20.96 |
| 6/2/1997 | 20.98 | 21.12 | 21.12 | 21.07 |
| 6/3/1997 | 20.33 | 20.45 | 20.48 | 20.46 |
| 6/4/1997 | 20.12 | 20.27 | 20.32 | 20.33 |
| 6/5/1997 | 19.66 | 19.86 | 19.96 | 20.02 |
| 6/6/1997 | 18.79 | 19.11 | 19.29 | 19.43 |
| 6/9/1997 | 18.68 | 19.01 | 19.21 | 19.39 |
| 6/10/1997 | 18.67 | 19.00 | 19.20 | 19.38 |
| 6/11/1997 | 18.53 | 18.89 | 19.09 | 19.27 |
| 6/12/1997 | 18.69 | 18.93 | 19.09 | 19.23 |
| 6/13/1997 | 18.83 | 19.06 | 19.19 | 19.30 |
| 6/16/1997 | 19.01 | 19.17 | 19.28 | 19.37 |
| 6/17/1997 | 19.23 | 19.35 | 19.43 | 19.51 |
| 6/18/1997 | 18.79 | 18.96 | 19.10 | 19.23 |
| 6/19/1997 | 18.67 | 18.92 | 19.05 | 19.17 |
| 6/20/1997 | 18.55 | 18.89 | 19.04 | 19.18 |
| 6/23/1997 | 19.14 | 19.25 | 19.36 | 19.46 |
| 6/24/1997 | 19.03 | 19.20 | 19.31 | 19.41 |
| 6/25/1997 | 19.52 | 19.63 | 19.73 | 19.81 |
| 6/26/1997 | 19.09 | 19.19 | 19.30 | 19.38 |
| 6/27/1997 | 19.46 | 19.56 | 19.64 | 19.71 |
| 6/30/1997 | 19.80 | 19.84 | 19.90 | 19.94 |
| 7/1/1997 | 20.12 | 20.12 | 20.09 | 20.06 |
| 7/2/1997 | 20.34 | 20.34 | 20.31 | 20.28 |
| 7/3/1997 | 19.56 | 19.60 | 19.65 | 19.69 |
| 7/4/1997 | ||||
| 7/7/1997 | 19.52 | 19.63 | 19.71 | 19.78 |
| 7/8/1997 | 19.73 | 19.83 | 19.88 | 19.93 |
| 7/9/1997 | 19.46 | 19.59 | 19.66 | 19.72 |
| 7/10/1997 | 19.22 | 19.38 | 19.45 | 19.52 |
| 7/11/1997 | 19.33 | 19.49 | 19.56 | 19.63 |
| 7/14/1997 | 18.99 | 19.13 | 19.23 | 19.32 |
| 7/15/1997 | 19.67 | 19.76 | 19.83 | 19.89 |
| 7/16/1997 | 19.65 | 19.71 | 19.74 | 19.77 |
| 7/17/1997 | 19.99 | 20.02 | 20.00 | 19.99 |
| 7/18/1997 | 19.27 | 19.43 | 19.46 | 19.49 |
| 7/21/1997 | 19.18 | 19.42 | 19.50 | 19.56 |
| 7/22/1997 | 19.08 | 19.48 | 19.56 | 19.61 |
| 7/23/1997 | 19.63 | 19.70 | 19.75 | 19.79 |
| 7/24/1997 | 19.77 | 19.84 | 19.88 | 19.92 |
| 7/25/1997 | 19.89 | 19.94 | 19.96 | 19.97 |
| 7/28/1997 | 19.81 | 19.86 | 19.88 | 19.90 |
| 7/29/1997 | 19.85 | 19.91 | 19.94 | 19.96 |
| 7/30/1997 | 20.30 | 20.31 | 20.29 | 20.27 |
| 7/31/1997 | 20.14 | 20.18 | 20.17 | 20.16 |
| 8/1/1997 | 20.28 | 20.31 | 20.30 | 20.29 |
| 8/4/1997 | 20.75 | 20.86 | 20.83 | 20.81 |
| 8/5/1997 | 20.81 | 20.93 | 20.91 | 20.88 |
| 8/6/1997 | 20.46 | 20.56 | 20.58 | 20.58 |
| 8/7/1997 | 20.09 | 20.28 | 20.37 | 20.40 |
| 8/8/1997 | 19.54 | 19.74 | 19.87 | 19.93 |
| 8/11/1997 | 19.69 | 19.88 | 19.98 | 20.03 |
| 8/12/1997 | 19.99 | 20.17 | 20.25 | 20.28 |
| 8/13/1997 | 20.19 | 20.39 | 20.47 | 20.50 |
| 8/14/1997 | 20.08 | 20.30 | 20.38 | 20.41 |
| 8/15/1997 | 20.07 | 20.26 | 20.33 | 20.36 |
| 8/18/1997 | 19.91 | 20.15 | 20.25 | 20.31 |
| 8/19/1997 | 20.12 | 20.33 | 20.41 | 20.45 |
| 8/20/1997 | 20.06 | 20.21 | 20.31 | 20.36 |
| 8/21/1997 | 19.66 | 19.78 | 19.85 | 19.88 |
| 8/22/1997 | 19.70 | 19.81 | 19.89 | 19.92 |
| 8/25/1997 | 19.26 | 19.37 | 19.49 | 19.55 |
| 8/26/1997 | 19.28 | 19.41 | 19.53 | 19.59 |
| 8/27/1997 | 19.73 | 19.83 | 19.92 | 19.95 |
| 8/28/1997 | 19.58 | 19.67 | 19.76 | 19.79 |
| 8/29/1997 | 19.61 | 19.74 | 19.83 | 19.86 |
| 9/1/1997 | ||||
| 9/2/1997 | 19.65 | 19.76 | 19.85 | 19.88 |
| 9/3/1997 | 19.61 | 19.74 | 19.82 | 19.86 |
| 9/4/1997 | 19.40 | 19.52 | 19.61 | 19.66 |
| 9/5/1997 | 19.63 | 19.73 | 19.81 | 19.85 |
| 9/8/1997 | 19.45 | 19.60 | 19.69 | 19.74 |
| 9/9/1997 | 19.42 | 19.58 | 19.67 | 19.72 |
| 9/10/1997 | 19.42 | 19.57 | 19.66 | 19.71 |
| 9/11/1997 | 19.37 | 19.49 | 19.56 | 19.61 |
| 9/12/1997 | 19.32 | 19.46 | 19.53 | 19.58 |
| 9/15/1997 | 19.27 | 19.41 | 19.48 | 19.53 |
| 9/16/1997 | 19.61 | 19.74 | 19.79 | 19.83 |
| 9/17/1997 | 19.42 | 19.56 | 19.61 | 19.65 |
| 9/18/1997 | 19.38 | 19.53 | 19.60 | 19.64 |
| 9/19/1997 | 19.35 | 19.53 | 19.61 | 19.65 |
| 9/22/1997 | 19.60 | 19.74 | 19.84 | 19.87 |
| 9/23/1997 | 19.79 | 19.87 | 19.91 | 19.92 |
| 9/24/1997 | 19.94 | 20.04 | 20.08 | 20.08 |
| 9/25/1997 | 20.39 | 20.46 | 20.46 | 20.44 |
| 9/26/1997 | 20.87 | 20.88 | 20.84 | 20.78 |
| 9/29/1997 | 21.26 | 21.17 | 21.10 | 21.03 |
| 9/30/1997 | 21.18 | 21.12 | 21.04 | 20.95 |
| 10/1/1997 | 21.05 | 21.02 | 20.95 | 20.88 |
| 10/2/1997 | 21.77 | 21.71 | 21.59 | 21.45 |
| 10/3/1997 | 22.76 | 22.55 | 22.30 | 22.06 |
| 10/6/1997 | 21.93 | 21.84 | 21.65 | 21.45 |
| 10/7/1997 | 21.96 | 21.95 | 21.81 | 21.63 |
| 10/8/1997 | 22.18 | 22.13 | 21.97 | 21.76 |
| 10/9/1997 | 22.12 | 22.10 | 21.96 | 21.76 |
| 10/10/1997 | 22.10 | 22.14 | 22.00 | 21.81 |
| 10/13/1997 | 21.32 | 21.37 | 21.32 | 21.19 |
| 10/14/1997 | 20.70 | 20.80 | 20.79 | 20.73 |
| 10/15/1997 | 20.57 | 20.70 | 20.70 | 20.65 |
| 10/16/1997 | 20.97 | 21.09 | 21.08 | 20.99 |
| 10/17/1997 | 20.59 | 20.74 | 20.70 | 20.59 |
| 10/20/1997 | 20.70 | 20.91 | 20.95 | 20.88 |
| 10/21/1997 | 20.67 | 20.86 | 20.90 | 20.85 |
| 10/22/1997 | 21.42 | 21.43 | 21.35 | 21.23 |
| 10/23/1997 | 21.09 | 21.12 | 21.06 | 20.97 |
| 10/24/1997 | 20.97 | 21.06 | 21.02 | 20.95 |
| 10/27/1997 | 21.07 | 21.15 | 21.10 | 21.00 |
| 10/28/1997 | 20.46 | 20.62 | 20.63 | 20.58 |
| 10/29/1997 | 20.71 | 20.84 | 20.84 | 20.77 |
| 10/30/1997 | 21.22 | 21.29 | 21.25 | 21.14 |
| 10/31/1997 | 21.08 | 21.18 | 21.14 | 21.03 |
| 11/3/1997 | 20.96 | 21.09 | 21.04 | 20.93 |
| 11/4/1997 | 20.70 | 20.85 | 20.85 |