21. This equation assumes that algal oil has roughly 80 % of the caloric energy value of crude petroleum . 22. That increase was due in part to the higher price of crude petroleum , which has since fallen back. 23. Exports of crude petroleum and petroleum products in 1996, in US $ millions, with percentage change over 1995. 24. Both sides are keen to expand cooperation in the petroleum sector beyond India's purchase of crude petroleum from Iran. 25. Crude petroleum shipments averaged 9.2 million barrels per day in June, down from 9.3 million barrels daily in May.26. Imports fell marginally to $ 18 . 8 billion, led by a decline in crude petroleum and automotive products. 27. The fine settled charges that the company exported crude petroleum from the US to Canada without proper US government authorization. 28. Hydrogen sulfide ( H 2 S, also known as sour gas ), is found to varying degrees in crude petroleum . 29. This wildlife is under constant threat from oil spills as circulatory streams carry the crude petroleum from the major shipping lanes. 30. An 8.5 percent surge in crude petroleum was a chief contributor to a 1.6 percent overall rise at the raw materials stage.
