“…Despite the positive results of field testing, MEOR has not received the attention of the petroleum refineries due to technical bottlenecks. In addition, a negative perception exists regarding the use of microbes, although the tests carried out by laboratories have proven these to be safe [60,156]. Numerous other factors are currently contributing to the lack of attention being paid to this approach [11,12,22,36,42,51,55,64,74,154,163].…”