[{"Date": "1986-11-15", "WTI Spot Price": 15.05},{"Date": "1987-11-15", "WTI Spot Price": 19.2},{"Date": "1988-11-15", "WTI Spot Price": 15.97},{"Date": "1989-11-15", "WTI Spot Price": 19.64},{"Date": "1990-11-15", "WTI Spot Price": 24.53},{"Date": "1991-11-15", "WTI Spot Price": 21.54},{"Date": "1992-11-15", "WTI Spot Price": 20.58},{"Date": "1993-11-15", "WTI Spot Price": 18.43},{"Date": "1994-11-15", "WTI Spot Price": 17.2},{"Date": "1995-11-15", "WTI Spot Price": 18.43},{"Date": "1996-11-15", "WTI Spot Price": 22.12},{"Date": "1997-11-15", "WTI Spot Price": 20.61},{"Date": "1998-11-15", "WTI Spot Price": 14.42},{"Date": "1999-11-15", "WTI Spot Price": 19.34},{"Date": "2000-11-15", "WTI Spot Price": 30.38},{"Date": "2001-11-15", "WTI Spot Price": 25.98},{"Date": "2002-11-15", "WTI Spot Price": 26.18},{"Date": "2003-11-15", "WTI Spot Price": 31.08},{"Date": "2004-11-15", "WTI Spot Price": 41.51},{"Date": "2005-11-15", "WTI Spot Price": 56.64},{"Date": "2006-11-15", "WTI Spot Price": 66.05},{"Date": "2007-11-15", "WTI Spot Price": 72.34},{"Date": "2008-11-15", "WTI Spot Price": 99.67},{"Date": "2009-11-15", "WTI Spot Price": 61.95},{"Date": "2010-11-15", "WTI Spot Price": 79.48},{"Date": "2011-11-15", "WTI Spot Price": 94.88},{"Date": "2012-11-15", "WTI Spot Price": 94.05},{"Date": "2013-11-15", "WTI Spot Price": 97.98},{"Date": "2014-11-15", "WTI Spot Price": 93.17},{"Date": "2015-11-15", "WTI Spot Price": 48.66}]