Moscow - The splurge of oil profits feeding Russia's years of growth has turned sticky with falling production and energy prices.
This double whammy is threatening to undercut the government's economic policy as the industry that is its main source of revenue takes a battering from the country's worst financial crisis in a decade.
Scooping huge oil windfalls into state coffers over the oil industry's boom years from 1999 to 2004 has been at the root of Russia's ideology under former President Vladimir Putin.
The surplus helped pay back a national debt as part of a therapy to recover from the humiliation an impoverished Russia suffered by the Soviet collapse and then move toward a resurgent foreign policy.