v3.26.1
MASTER TRUST - Schedule of Master Trust Net Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
EBT Total | Master Trust    
Investments at fair value:    
Total investments at fair value $ 9,383,247 $ 8,460,728
Benefit responsive investment contracts at contract value 226,673 244,874
Total investments 9,609,920 8,705,602
Receivables:    
Pending transactions  
Dividends and interest 1,953 2,095
Total assets 9,611,873 8,707,697
Accounts payable:    
Pending transactions, net 2,435 441
Accrued fees and other 430 619
Total liabilities 2,865 1,060
Net assets available for benefits 9,609,008 8,706,637
EBT Total | Master Trust | BP ADS    
Investments at fair value:    
Total investments at fair value 637,686 604,037
EBT Total | Master Trust | Common/collective trust funds    
Investments at fair value:    
Total investments at fair value 8,635,683 7,818,385
EBT Total | Master Trust | BrokerageLink - self directed    
Investments at fair value:    
Total investments at fair value 70,106  
EBT Total | Master Trust | Money market funds    
Investments at fair value:    
Total investments at fair value 39,772 38,306
BP Employee Savings Plan (Plan No. 001)    
Accounts payable:    
Net assets available for benefits 9,080,058 8,279,147
BP Employee Savings Plan (Plan No. 001) | Plan Interest    
Investments at fair value:    
Total investments at fair value 8,818,954 7,996,323
Benefit responsive investment contracts at contract value 220,511 238,765
Total investments 9,039,465 8,235,088
Receivables:    
Pending transactions  
Dividends and interest 1,909 2,048
Total assets 9,041,374 8,237,136
Accounts payable:    
Pending transactions, net 2,599 477
Accrued fees and other 402 598
Total liabilities 3,001 1,075
Net assets available for benefits 9,038,373 8,236,061
BP Employee Savings Plan (Plan No. 001) | Plan Interest | BP ADS    
Investments at fair value:    
Total investments at fair value 623,424 591,764
BP Employee Savings Plan (Plan No. 001) | Plan Interest | Common/collective trust funds    
Investments at fair value:    
Total investments at fair value 8,087,870 7,367,068
BP Employee Savings Plan (Plan No. 001) | Plan Interest | BrokerageLink - self directed    
Investments at fair value:    
Total investments at fair value 68,646  
BP Employee Savings Plan (Plan No. 001) | Plan Interest | Money market funds    
Investments at fair value:    
Total investments at fair value 39,014 37,491
BP Partnership Savings Plan (Plan No. 051)    
Accounts payable:    
Net assets available for benefits 43,638 36,704
BP Partnership Savings Plan (Plan No. 051) | Plan Interest    
Investments at fair value:    
Total investments at fair value 42,599 35,499
Benefit responsive investment contracts at contract value 846 1,032
Total investments 43,445 36,531
Receivables:    
Pending transactions  
Dividends and interest 7 8
Total assets 43,452 36,539
Accounts payable:    
Pending transactions, net 0 12
Accrued fees and other 2 1
Total liabilities 2 13
Net assets available for benefits 43,450 36,526
BP Partnership Savings Plan (Plan No. 051) | Plan Interest | BP ADS    
Investments at fair value:    
Total investments at fair value 1,880 1,902
BP Partnership Savings Plan (Plan No. 051) | Plan Interest | Common/collective trust funds    
Investments at fair value:    
Total investments at fair value 40,452 33,464
BP Partnership Savings Plan (Plan No. 051) | Plan Interest | BrokerageLink - self directed    
Investments at fair value:    
Total investments at fair value 130  
BP Partnership Savings Plan (Plan No. 051) | Plan Interest | Money market funds    
Investments at fair value:    
Total investments at fair value 137 133
BP DirectSave Plan (Plan No. 052)    
Accounts payable:    
Net assets available for benefits 40,197 37,965
BP DirectSave Plan (Plan No. 052) | Plan Interest    
Investments at fair value:    
Total investments at fair value 38,170 35,971
Benefit responsive investment contracts at contract value 938 924
Total investments 39,108 36,895
Receivables:    
Pending transactions  
Dividends and interest 5 4
Total assets 39,113 36,899
Accounts payable:    
Pending transactions, net (88) (86)
Accrued fees and other 3 2
Total liabilities (85) (84)
Net assets available for benefits 39,198 36,983
BP DirectSave Plan (Plan No. 052) | Plan Interest | BP ADS    
Investments at fair value:    
Total investments at fair value 470 367
BP DirectSave Plan (Plan No. 052) | Plan Interest | Common/collective trust funds    
Investments at fair value:    
Total investments at fair value 37,639 35,545
BP DirectSave Plan (Plan No. 052) | Plan Interest | BrokerageLink - self directed    
Investments at fair value:    
Total investments at fair value 0  
BP DirectSave Plan (Plan No. 052) | Plan Interest | Money market funds    
Investments at fair value:    
Total investments at fair value 61 59
BPX Energy Employee Savings Plan (Plan No. 100)    
Accounts payable:    
Net assets available for benefits 444,871 366,524
BPX Energy Employee Savings Plan (Plan No. 100) | Plan Interest    
Investments at fair value:    
Total investments at fair value 437,543 360,308
Benefit responsive investment contracts at contract value 3,580 3,105
Total investments 441,123 363,413
Receivables:    
Pending transactions  
Dividends and interest 30 32
Total assets 441,153 363,445
Accounts payable:    
Pending transactions, net (51) 38
Accrued fees and other 20 16
Total liabilities (31) 54
Net assets available for benefits 441,184 363,391
BPX Energy Employee Savings Plan (Plan No. 100) | Plan Interest | BP ADS    
Investments at fair value:    
Total investments at fair value 11,688 9,892
BPX Energy Employee Savings Plan (Plan No. 100) | Plan Interest | Common/collective trust funds    
Investments at fair value:    
Total investments at fair value 424,147 349,799
BPX Energy Employee Savings Plan (Plan No. 100) | Plan Interest | BrokerageLink - self directed    
Investments at fair value:    
Total investments at fair value 1,153  
BPX Energy Employee Savings Plan (Plan No. 100) | Plan Interest | Money market funds    
Investments at fair value:    
Total investments at fair value 555 617
Archaea Employee Savings Plan (Plan No. 101)    
Accounts payable:    
Net assets available for benefits 48,382 34,568
Archaea Employee Savings Plan (Plan No. 101) | Plan Interest    
Investments at fair value:    
Total investments at fair value 45,981 32,627
Benefit responsive investment contracts at contract value 798 1,048
Total investments 46,779 33,675
Receivables:    
Pending transactions  
Dividends and interest 2 3
Total assets 46,781 33,678
Accounts payable:    
Pending transactions, net (25) 0
Accrued fees and other 3 2
Total liabilities (22) 2
Net assets available for benefits 46,803 33,676
Archaea Employee Savings Plan (Plan No. 101) | Plan Interest | BP ADS    
Investments at fair value:    
Total investments at fair value 224 112
Archaea Employee Savings Plan (Plan No. 101) | Plan Interest | Common/collective trust funds    
Investments at fair value:    
Total investments at fair value 45,575 32,509
Archaea Employee Savings Plan (Plan No. 101) | Plan Interest | BrokerageLink - self directed    
Investments at fair value:    
Total investments at fair value 177  
Archaea Employee Savings Plan (Plan No. 101) | Plan Interest | Money market funds    
Investments at fair value:    
Total investments at fair value $ 5 $ 6