Alva Review-Courier -

The blue lines show the sharp decline in average monthly production of oil and natural gas over the projected 30-year lifetime of new horizontal wells. The red lines depict the total amount of a well's lifetime production realized at various points in time. The curves are "normalized" so peak production is represented by a numerical value of 100, which usually occurs in the second month of a well's life. The charts were calculated using data obtained from the Oklahoma Tax Commission and analyzed by Oklahoma Watch and Wenzel Technology LLC.