STRAITS — Maritime Intelligence Monitor

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DIESEL WHOLESALE

Polish wholesale diesel (ONEkodiesel). Source: Orlen API. Daily updates ~08:30 Warsaw.

Current

6.46PLN/L

PLN/m³

6465

7d change

-4.5%

vs 2022 avg

-1%

EFS this week

+6%

Last update: 2026-05-01

2026 vs 2022

Day-of-year aligned. 2022 was the energy crisis year (Ukraine war, record prices).

  7.70 ┤                              ··                                                    
  7.41 ┤                              ::    ╭╮                                     ······   
  7.11 ┤                              ::    │╰╮╭╮╭──╮                        ·······    ····
  6.81 ┤                              :··· ╭╯·╰╯╰╯  ╰──╮·· ········ ··    ····              
  6.51 ┤                            ··· ╭──╯·    ···· ·│ ···  ╭── ·········                   now
  6.21 ┤                           ··╭──╯··         ···╰──╮╭──╯                             
  5.91 ┤                           : │                    ╰╯                                
  5.61 ┤                          ··╭╯                                                      
  5.31 ┤                         ··╭╯                                                       
  5.01 ┤            ·············· │                                                        
  4.71 ┤·········╭─────────────────╯                                                        
  4.42 ┤─────────╯                                                                          
       └────────────────────────────────────────────────────────────────────────────────────
               Jan           Feb          Mar           Apr           May           Jun

── 2026 (PLN/L) ·· 2022

2022 REFERENCE

Average6.54 PLN/L (6542 PLN/m³)

Min4.62 PLN/L

Max7.70 PLN/L

Range3.08 PLN/L

2026 YTD

Min4.40 PLN/L

Max7.26 PLN/L

Range2.86 PLN/L

Data points78

EMERGENCY FUEL SURCHARGE (EFS)

Formula: EFS = ((weekly avg − base) / base) × 30%. Base rate: 5.00 PLN/l net (Orlen Ekodiesel wholesale). Mon–Fri published prices.

APPLIES FROM 2026-04-27

6%EFS

Exact

6.18%

WEEK 16 · 2026-04-20 → 2026-04-24

Date	Day	PLN/m³	PLN/l
2026-04-20	Mon	6104	6.104	carry
2026-04-21	Tue	5953	5.953
2026-04-22	Wed	5953	5.953	carry
2026-04-23	Thu	5953	5.953	carry
2026-04-24	Fri	6187	6.187
Average		6030	6.030

fuel variation = (6.030 − 5.00) / 5.00 = 20.60%
EFS = 20.60% × 30% = 6.18% ≈ 6%

EFS HISTORY

Week	Period	Avg PLN/l	Variation	EFS
W16	04-20 → 04-24	6.030	20.6%	6%
W15	04-13 → 04-17	6.551	31.0%	9%
W14	04-06 → 04-10	6.908	38.2%	11%
W13	03-30 → 04-03	6.820	36.4%	11%

Methodology: EFS = ((weekly Orlen Ekodiesel avg − 5.00 PLN/l) / 5.00) × 30%. Base rate 5.00 PLN/l net. Fuel cost weight 30% (industry standard). Mon–Fri Orlen published wholesale prices. Missing days use previous day's price. Surcharge applies from Monday following the reference week.

Source: Orlen wholesale fuel prices API (product: ONEkodiesel, ID 43). Daily collection at 09:00 CET.