In no particular order, and off the top of my head, the rapid disinflation in the price of oil is currently:
1. Wreaking havoc on the budgets of most oil exporting nations. 2. Destroying purchasing power through currency devaluation in Russia, Nigeria, across the Middle East and Latin America. 3. Crushing the economies of parts of Canada, Alaska, and the Dakotas. 4. Directly causing job losses in Texas. 5. Negatively impacting the Houston office markets. 6. Destroying earnings of publicly traded oil companies. 7. Reducing stock market valuations of said companies. 8. Reducing portfolio values. 9. Impacting earnings of banks that have extended credit to oil firms.