324110

Analysis

NAICS 324110 is the 2022 national industry for petroleum refineries, part of 32411 (Petroleum Refineries). Census lists 51 example activities under it in the official index.

County Business Patterns counts 143 US establishments in this code in 2023, employing 55,064 people at an average annual payroll of $162,051 per employee (99th percentile of national industries). 8% of the establishments have fewer than five employees, which points to larger operations.

Between 2018 and 2023 the number of establishments fell 16% and employment fell 14%. The 2018 count used NAICS 2017, so part of a large move can come from codes being redefined rather than from businesses opening or closing.

Census lists 11 related activities that belong elsewhere, most often in 32412, 322120, 324191 and 324199. Businesses that do several things are classified by their primary activity, the one that generates the most value, so check those boundaries before settling on this code.

Its index entries, the activities Census uses to assign businesses to this code, include acid oils made in petroleum refineries, aliphatic chemicals (i.e., acyclic) made in petroleum…, alkylates made in petroleum refineries and asphalt and asphaltic materials made in petroleum refineries, among 51 in all.

Its goods appear in 86 statistical lines of the US tariff schedule, mostly under headings 2710 (petroleum oils and oils obtained from bituminous minerals…), 2712 (petroleum jelly; paraffin wax, microcrystalline petroleum…) and 2713 (petroleum coke, petroleum bitumen and other residues of…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.