Methane (CH4) bụ gas na-ere ọkụ na-enweghị isi na enweghị agba ma na-eje ozi dị ka isi iyi mmanụ ọkụ. Ọ na-akpaghị aka na ihe dịka 538 Celsius, na-agba ọkụ n'otu ntabi anya mgbe ị na-eru okpomọkụ kpọmkwem.
Eji ire ọkụ na-acha anụnụ anụnụ mara ya, Methane nwere ike iru elu okpomọkụ gburugburu 1400C. N'elu agwakọta na ikuku, ọ na-aghọ mgbawa n'etiti 4.5% na 16% ntinye uche. N'okpuru ọnụ ụzọ a, ọ na-ere ọkụ nke ukwuu, mgbe n'elu, ọ na-akwado nke a na-eweda ala karịa combustion.