Table 2.

List of notations.

Notation	Definition
$S_r$	Set of customer requests
$S_o$	Set of crude oil rigs
$S_t$	Set of tankers
$Q_a$	Available Quantity
$Q_r$	Required Quantity
$L_o$	Location of crude oil rigs
$C_f$	Conflict factor
$T_{sub}$	Request submission time
$T_{travel}$	Time required to deliver crude oil
T	Needed by
$T_{wait}$	Waiting time
F	Regular Fare per mile
$D_1$	Travelled Distance by tanker
$D_s$	Travelled Distance by customer vessel
$N_{SC}$	Number of shared customers
$\alpha$	Anonymity factor
$R_c$	Customer Request
A	Average matrix
n	number of crude oil rig
$C_t$	Crude oil tanker
$L_C$	Customer destination
$O_r$	Crude Oil rig
${\eta }_{PTS}$	System Efficiency