U.S. Energy Information Administration

Refinery Olefins

EIA petroleum sum snd data for Refinery Olefins .

Series

24

normalized EIA series

Observations

1,602

records in the database

Latest record

28 Feb 2026

newest observation

Cadences

2

annual, monthly

Series chart

Selected series performance

Latest

No value

No observation

Change

No prior value

No prior value

52W high

No value

No observation

52W low

No value

No observation

ATH

No value

No observation

ATL

No value

No observation

Series

Available petroleum series

/v1/commodities/eia-petroleum-refinery-olefins-288e6860e0/series
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlyU.S.monthly16 MBBL/D28 Feb 2026 · 194 rows
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlyU.S.monthly461 MBBL28 Feb 2026 · 194 rows
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlyPADD 1monthly5 MBBL/D28 Feb 2026 · 194 rows
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlyPADD 1monthly150 MBBL28 Feb 2026 · 194 rows
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlyPADD 2monthly11 MBBL/D28 Feb 2026 · 194 rows
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlyPADD 2monthly311 MBBL28 Feb 2026 · 194 rows
Gulf Coast (PADD 3) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r30-z00-mbbld-monthlyPADD 3monthly1 MBBL/D31 Oct 2022 · 121 rows
Gulf Coast (PADD 3) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r30-z00-mbbl-monthlyPADD 3monthly26 MBBL31 Oct 2022 · 121 rows
Rocky Mountain (PADD 4) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r40-z00-mbbld-monthlyPADD 4monthly0 MBBL/D31 Jan 2023 · 2 rows
Rocky Mountain (PADD 4) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r40-z00-mbbl-monthlyPADD 4monthly1 MBBL31 Jan 2023 · 2 rows
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbld-monthlyPADD 5monthly0 MBBL/D30 Nov 2025 · 23 rows
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbl-monthlyPADD 5monthly4 MBBL30 Nov 2025 · 23 rows
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-annualU.S.annual5,864 MBBL31 Dec 2025 · 16 rows
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-annualU.S.annual16 MBBL/D31 Dec 2025 · 16 rows
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-annualPADD 1annual3,319 MBBL31 Dec 2025 · 16 rows
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-annualPADD 1annual9 MBBL/D31 Dec 2025 · 16 rows
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-annualPADD 2annual2,541 MBBL31 Dec 2025 · 16 rows
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-annualPADD 2annual7 MBBL/D31 Dec 2025 · 16 rows
Gulf Coast (PADD 3) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r30-z00-mbbl-annualPADD 3annual51 MBBL31 Dec 2022 · 13 rows
Gulf Coast (PADD 3) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r30-z00-mbbld-annualPADD 3annual0 MBBL/D31 Dec 2022 · 13 rows
Rocky Mountain (PADD 4) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r40-z00-mbbl-annualPADD 4annual1 MBBL31 Dec 2023 · 2 rows
Rocky Mountain (PADD 4) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r40-z00-mbbld-annualPADD 4annual0 MBBL/D31 Dec 2023 · 2 rows
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbl-annualPADD 5annual4 MBBL31 Dec 2025 · 10 rows
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbld-annualPADD 5annual0 MBBL/D31 Dec 2025 · 10 rows

Latest observations

Recent records

U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly16 MBBL/D28 Feb 2026
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly461 MBBL28 Feb 2026
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly5 MBBL/D28 Feb 2026
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly150 MBBL28 Feb 2026
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly11 MBBL/D28 Feb 2026
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly311 MBBL28 Feb 2026
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly16 MBBL/D31 Jan 2026
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly511 MBBL31 Jan 2026
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly7 MBBL/D31 Jan 2026
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly217 MBBL31 Jan 2026
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly9 MBBL/D31 Jan 2026
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly294 MBBL31 Jan 2026
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-annualannual5,864 MBBL31 Dec 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-annualannual16 MBBL/D31 Dec 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly13 MBBL/D31 Dec 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly403 MBBL31 Dec 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-annualannual3,319 MBBL31 Dec 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-annualannual9 MBBL/D31 Dec 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly6 MBBL/D31 Dec 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly201 MBBL31 Dec 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-annualannual2,541 MBBL31 Dec 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-annualannual7 MBBL/D31 Dec 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly7 MBBL/D31 Dec 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly202 MBBL31 Dec 2025
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbl-annualannual4 MBBL31 Dec 2025
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbld-annualannual0 MBBL/D31 Dec 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly17 MBBL/D30 Nov 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly501 MBBL30 Nov 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly9 MBBL/D30 Nov 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly256 MBBL30 Nov 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly8 MBBL/D30 Nov 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly241 MBBL30 Nov 2025
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbld-monthlymonthly0 MBBL/D30 Nov 2025
West Coast (PADD 5) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r50-z00-mbbl-monthlymonthly4 MBBL30 Nov 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly15 MBBL/D31 Oct 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly467 MBBL31 Oct 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly7 MBBL/D31 Oct 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly228 MBBL31 Oct 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly8 MBBL/D31 Oct 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly239 MBBL31 Oct 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly15 MBBL/D30 Sept 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly450 MBBL30 Sept 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly8 MBBL/D30 Sept 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly252 MBBL30 Sept 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly7 MBBL/D30 Sept 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly198 MBBL30 Sept 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly17 MBBL/D31 Aug 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly526 MBBL31 Aug 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly11 MBBL/D31 Aug 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly329 MBBL31 Aug 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly6 MBBL/D31 Aug 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly197 MBBL31 Aug 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly16 MBBL/D31 Jul 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly500 MBBL31 Jul 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly10 MBBL/D31 Jul 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly298 MBBL31 Jul 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly7 MBBL/D31 Jul 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly202 MBBL31 Jul 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly15 MBBL/D30 Jun 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly454 MBBL30 Jun 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly10 MBBL/D30 Jun 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly296 MBBL30 Jun 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly5 MBBL/D30 Jun 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly158 MBBL30 Jun 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly17 MBBL/D31 May 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly518 MBBL31 May 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly10 MBBL/D31 May 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly307 MBBL31 May 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly7 MBBL/D31 May 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly211 MBBL31 May 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly16 MBBL/D30 Apr 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly493 MBBL30 Apr 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly10 MBBL/D30 Apr 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly295 MBBL30 Apr 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbld-monthlymonthly7 MBBL/D30 Apr 2025
Midwest (PADD 2) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r20-z00-mbbl-monthlymonthly198 MBBL30 Apr 2025
U.S. Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbld-monthlymonthly21 MBBL/D31 Mar 2025
U.S. Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-nus-z00-mbbl-monthlymonthly646 MBBL31 Mar 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbld-monthlymonthly12 MBBL/D31 Mar 2025
East Coast (PADD 1) Imports of Refinery Olefins (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-eplole-im0-r10-z00-mbbl-monthlymonthly381 MBBL31 Mar 2025