Herbicidal oil dispersions, characterized in that they comprise (a) 10% to 40% by weight of active ingredients (a1) to (a4), comprising one or more biscarbamate herbicides of the formulae (a1) and (a2), desmedipham, phenmedipham, ethofumesate (a3), ethofumesate, and lenacil (a4) of the formula lenacil, (b) 5% to 70% by weight of one or more surfactants, (c) 10% to 70% by weight of one or more compounds which as far as possible are polar, but at the same time are water-insoluble or have a solubility in water of up to 5 g/l, from the group of fully esterified organic phosphates and fully esterified phosphonates, as solvents, is selected from compounds from the following group: (c1.7) phosphoric triesters with alkoxylated short-chain alcohols having 1 to 22 carbon atoms in the alkyl radical and 1 to 30 alkyleneoxy units in the polyalkyleneoxy moiety, (c1.8) phosphoric triesters with alkyl alcohols having 5 to 22 carbon atoms, and (c1.9) phosphoric triesters based on ortho-phosphoric acid esterified partially with optionally alkoxylated alcohols having 1 to 22 carbon atoms in the alkyl radical or with optionally alkoxylated phenol derivatives, in each case having 0 to 30 alkyleneoxy units in the polyalkyleneoxy moiety, the remaining OH valences of the ortho-phosphoric acid having been subsequently alkoxylated, (d) 0% to 40% by weight of other organic solvents, (e) up to 20% by weight of other, customary formulating auxiliaries, (f) if desired, water, wherein the oil dispersions comprise thickeners in component (e) and the active ingredients (a) in a weight ratio [(a1) and (a2)]:(a3):(a4) of : (0.1) : (0.01) to : : . (a) 10% to 40% by weight of active ingredients (a1) to (a4), comprising one or more biscarbamate herbicides of the formulae (a1) and (a2), desmedipham, phenmedipham, ethofumesate (a3), ethofumesate, and lenacil (a4) of the formula lenacil, (b) 5% to 70% by weight of one or more surfactants, (c) 10% to 70% by weight of one or more compounds which as far as possible are polar, but at the same time are water-insoluble or have a solubility in water of up to 5 g/l, from the group of fully esterified organic phosphates and fully esterified phosphonates, as solvents, is selected from compounds from the following group: (c1.7) phosphoric triesters with alkoxylated short-chain alcohols having 1 to 22 carbon atoms in the alkyl radical and 1 to 30 alkyleneoxy units in the polyalkyleneoxy moiety, (c1.8) phosphoric triesters with alkyl alcohols having 5 to 22 carbon atoms, and (c1.9) phosphoric triesters based on ortho-phosphoric acid esterified partially with optionally alkoxylated alcohols having 1 to 22 carbon atoms in the alkyl radical or with optionally alkoxylated phenol derivatives, in each case having 0 to 30 alkyleneoxy units in the polyalkyleneoxy moiety, the remaining OH valences of the ortho-phosphoric acid having been subsequently alkoxylated, (c1.7) phosphoric triesters with alkoxylated short-chain alcohols having 1 to 22 carbon atoms in the alkyl radical and 1 to 30 alkyleneoxy units in the polyalkyleneoxy moiety, (c1.8) phosphoric triesters with alkyl alcohols having 5 to 22 carbon atoms, and (c1.9) phosphoric triesters based on ortho-phosphoric acid esterified partially with optionally alkoxylated alcohols having 1 to 22 carbon atoms in the alkyl radical or with optionally alkoxylated phenol derivatives, in each case having 0 to 30 alkyleneoxy units in the polyalkyleneoxy moiety, the remaining OH valences of the ortho-phosphoric acid having been subsequently alkoxylated, (d) 0% to 40% by weight of other organic solvents, (e) up to 20% by weight of other, customary formulating auxiliaries, (f) if desired, water, <EOS>