NAICS 2111 covers the extraction stage of oil and natural gas, and LNG trade data is often reported under this grouping for statistical purposes. However, for customs entry, LNG is classified under specific HTS headings that govern its duty treatment and any applicable regulatory requirements — the NAICS code alone does not determine admissibility.

Crude petroleum imports have historically not been subject to broad antidumping or countervailing duty orders, but energy commodities can be affected by sanctions, export controls, or country-specific restrictions. Importers should verify current Office of Foreign Assets Control (OFAC) guidance and any applicable executive orders before completing entry.