On a share of such enterprises as Novokuibyshevsky, Novoufimsky, Omsk, Ryazan, Moscow, Kuibyshevsky ORP, "Uphaneftechem", "Kinef", "Slavneft- Yaroslavnefteorgsintez", "LUKoil-Volgogradneftepererabotka", "Angarskaya petrochemical company" is necessary up to 70 % of branch emissions. In oil refining branch the steady tendency to reduction of volumes of emissions of polluting substances in an atmosphere is kept. In 2001 the size of this parameter has decreased in comparison with 1995 in 1,3 times. Alongside with a low parameter of catching of harmful substances (less than 50 %) the branch has high enough degree of clearing of emissions from hydrocarbons (67,8 %). A basis of emissions liquid and gaseous substances, first of all, make flying organic connections (56 %), and also sulfur dioxide (18,4 %). Alongside with a low parameter of catching of harmful substances (less than 50 %) the branch has high enough degree of clearing of emissions from hydrocarbons (67,8 %). During last years the parameter of economy of fresh water practically did not vary as a result of use of systems of the turnaround and repeatedly — consecutive water supply, making 94,96 %. The structure of dump of sewage in water objects is defined by presence cleared according to the norms (58,3 %) and polluted (41,6 %) sewage.