U.S. Energy Information Administration

Isobutane

EIA petroleum sum snd data for Isobutane.

Series

24

normalized EIA series

Observations

7,038

records in the database

Latest record

31 May 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

U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-monthlyU.S.monthly480 MBBL/D31 May 2026 · 545 rows
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-monthlyU.S.monthly14,892 MBBL31 May 2026 · 545 rows
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-monthlyPADD 1monthly38 MBBL/D31 May 2026 · 545 rows
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-monthlyPADD 1monthly1,175 MBBL31 May 2026 · 545 rows
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-monthlyPADD 2monthly67 MBBL/D31 May 2026 · 545 rows
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-monthlyPADD 2monthly2,083 MBBL31 May 2026 · 545 rows
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-monthlyPADD 3monthly335 MBBL/D31 May 2026 · 545 rows
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-monthlyPADD 3monthly10,391 MBBL31 May 2026 · 545 rows
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-monthlyPADD 4monthly35 MBBL/D31 May 2026 · 545 rows
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-monthlyPADD 4monthly1,093 MBBL31 May 2026 · 545 rows
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbld-monthlyPADD 5monthly5 MBBL/D31 May 2026 · 545 rows
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbl-monthlyPADD 5monthly150 MBBL31 May 2026 · 545 rows
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-annualU.S.annual176,917 MBBL31 Dec 2025 · 45 rows
U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-annualU.S.annual485 MBBL/D31 Dec 2025 · 43 rows
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-annualPADD 1annual13,271 MBBL31 Dec 2025 · 45 rows
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-annualPADD 1annual36 MBBL/D31 Dec 2025 · 37 rows
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-annualPADD 2annual24,284 MBBL31 Dec 2025 · 45 rows
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-annualPADD 2annual67 MBBL/D31 Dec 2025 · 37 rows
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-annualPADD 3annual124,420 MBBL31 Dec 2025 · 45 rows
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-annualPADD 3annual341 MBBL/D31 Dec 2025 · 37 rows
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-annualPADD 4annual13,043 MBBL31 Dec 2025 · 45 rows
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-annualPADD 4annual36 MBBL/D31 Dec 2025 · 37 rows
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbl-annualPADD 5annual1,899 MBBL31 Dec 2025 · 45 rows
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbld-annualPADD 5annual5 MBBL/D31 Dec 2025 · 37 rows

Latest observations

Recent records

U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-monthlymonthly480 MBBL/D31 May 2026
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-monthlymonthly14,892 MBBL31 May 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-monthlymonthly38 MBBL/D31 May 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-monthlymonthly1,175 MBBL31 May 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-monthlymonthly67 MBBL/D31 May 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-monthlymonthly2,083 MBBL31 May 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-monthlymonthly335 MBBL/D31 May 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-monthlymonthly10,391 MBBL31 May 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-monthlymonthly35 MBBL/D31 May 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-monthlymonthly1,093 MBBL31 May 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbld-monthlymonthly5 MBBL/D31 May 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbl-monthlymonthly150 MBBL31 May 2026
U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-monthlymonthly497 MBBL/D30 Apr 2026
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-monthlymonthly14,900 MBBL30 Apr 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-monthlymonthly38 MBBL/D30 Apr 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-monthlymonthly1,132 MBBL30 Apr 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-monthlymonthly71 MBBL/D30 Apr 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-monthlymonthly2,117 MBBL30 Apr 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-monthlymonthly348 MBBL/D30 Apr 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-monthlymonthly10,432 MBBL30 Apr 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-monthlymonthly35 MBBL/D30 Apr 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-monthlymonthly1,064 MBBL30 Apr 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbld-monthlymonthly5 MBBL/D30 Apr 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbl-monthlymonthly155 MBBL30 Apr 2026
U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-monthlymonthly497 MBBL/D31 Mar 2026
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-monthlymonthly15,402 MBBL31 Mar 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-monthlymonthly36 MBBL/D31 Mar 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-monthlymonthly1,127 MBBL31 Mar 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-monthlymonthly73 MBBL/D31 Mar 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-monthlymonthly2,252 MBBL31 Mar 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-monthlymonthly346 MBBL/D31 Mar 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-monthlymonthly10,711 MBBL31 Mar 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-monthlymonthly37 MBBL/D31 Mar 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-monthlymonthly1,148 MBBL31 Mar 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbld-monthlymonthly5 MBBL/D31 Mar 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbl-monthlymonthly164 MBBL31 Mar 2026
U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-monthlymonthly495 MBBL/D28 Feb 2026
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-monthlymonthly13,858 MBBL28 Feb 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-monthlymonthly38 MBBL/D28 Feb 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-monthlymonthly1,051 MBBL28 Feb 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-monthlymonthly65 MBBL/D28 Feb 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-monthlymonthly1,830 MBBL28 Feb 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-monthlymonthly349 MBBL/D28 Feb 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-monthlymonthly9,781 MBBL28 Feb 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-monthlymonthly37 MBBL/D28 Feb 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-monthlymonthly1,048 MBBL28 Feb 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbld-monthlymonthly5 MBBL/D28 Feb 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbl-monthlymonthly148 MBBL28 Feb 2026
U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-monthlymonthly471 MBBL/D31 Jan 2026
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-monthlymonthly14,591 MBBL31 Jan 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-monthlymonthly37 MBBL/D31 Jan 2026
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-monthlymonthly1,132 MBBL31 Jan 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-monthlymonthly59 MBBL/D31 Jan 2026
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-monthlymonthly1,822 MBBL31 Jan 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-monthlymonthly334 MBBL/D31 Jan 2026
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-monthlymonthly10,347 MBBL31 Jan 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-monthlymonthly36 MBBL/D31 Jan 2026
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-monthlymonthly1,121 MBBL31 Jan 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbld-monthlymonthly5 MBBL/D31 Jan 2026
West Coast (PADD 5) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r50-mbbl-monthlymonthly169 MBBL31 Jan 2026
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-annualannual176,917 MBBL31 Dec 2025
U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-annualannual485 MBBL/D31 Dec 2025
U.S. Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbld-monthlymonthly483 MBBL/D31 Dec 2025
U.S. Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-nus-mbbl-monthlymonthly14,958 MBBL31 Dec 2025
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-annualannual13,271 MBBL31 Dec 2025
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-annualannual36 MBBL/D31 Dec 2025
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbld-monthlymonthly38 MBBL/D31 Dec 2025
East Coast (PADD 1) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r10-mbbl-monthlymonthly1,178 MBBL31 Dec 2025
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-annualannual24,284 MBBL31 Dec 2025
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-annualannual67 MBBL/D31 Dec 2025
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbld-monthlymonthly61 MBBL/D31 Dec 2025
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r20-mbbl-monthlymonthly1,879 MBBL31 Dec 2025
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-annualannual124,420 MBBL31 Dec 2025
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-annualannual341 MBBL/D31 Dec 2025
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbld-monthlymonthly342 MBBL/D31 Dec 2025
Gulf Coast (PADD 3) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r30-mbbl-monthlymonthly10,616 MBBL31 Dec 2025
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-annualannual13,043 MBBL31 Dec 2025
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-annualannual36 MBBL/D31 Dec 2025
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels per Day)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbld-monthlymonthly36 MBBL/D31 Dec 2025
Rocky Mountain (PADD 4) Field Production of Isobutane (Thousand Barrels)eia-petroleum-petroleum-sum-snd-m-epllbai-fpf-r40-mbbl-monthlymonthly1,116 MBBL31 Dec 2025

Sources and methodology

Source: U.S. Energy Information Administration (EIA) Open Data. Petroleum series include the cadence, product group, process, and geography published by EIA. World Price Index normalizes source data for charting and API access and does not imply EIA endorsement.