Fact-check: Has the US increased imports of Russian oil?

There have been reports that the US has increased imports of Russian oil over the past week:

• US ramps up oil imports from Russia, pursues own interests at expense of European allies amid Ukraine crisis

• US increases oil imports from Russia by 43% : Russian Official

• US Increases Imports of Russian Oil by 43% In the Last Week

This goes contrary to the US's stated intention of phasing out Russian oil imports and stories like that of the Russian tanker turned back. However, the sources cited above are not what I would call mainstream and they reference statements made by Russian officials. Thus, the question arises of whether these reports are true or not. I see three possibilities:

1. The reports of the US increasing import of Russian oil are large-scale disinformation

2. The US has increased Russian oil imports as a way to finish its existing contracts with Russian oil producers before the deadline imposed by the sanctions.

3. The US is playing Realpolitik - pursuing its own interests both in terms of imposing sanctions and pushing down the fuel prices.

I am interested in confirming/disproving these reports using official government data, customs statistics, etc.