Figure 1: Plot of number of Arbuckle field discoveries by year. Almost fifty percent of Arbuckle fields were discovered by 1955, which closely coincides with the peak year of discovery (1953). Subsequent secondary discovery peaks occurred in the late 1960's and mid-1980's and can be attributed to new technology and commodity prices.

Figure 2: Arbuckle reservoirs have produced 2.19 billion barrels of oil (BBO) representing 36% of the 6.1 BBO of total Kansas oil production.

Figure 3: Plot showing that approximately 80% of Arbuckle oil has been produced from 20% of all leases.

Figure 4: A) Structure map (subsea elevation) on Arbuckle showing locations of Arbuckle production in Kansas (black). Note most production is associated with structural highs, especially the Central Kansas Uplift. (CKU). B) Arbuckle cumulative oil production county (MMBO) by county. Of the 31 counties in which the Arbuckle has been productive, over 70% of the production has come from the 10 county area coinciding with the CKU.

Figure 5: The Arbuckle has produced over 1,629 MBO in the ten county area on the Central Kansas Uplift, which represents 69% of the production from the top four producing intervals in this region.

Figure 6: Annual production from Kansas Arbuckle reservoirs. Peak annual production was in 1951 (68,807,787 barrels) and has declined to an estimated 12 million barrels. Production prior to 1936 is not available in annual increments and is not shown