The typing system in a contract takes the form of reciprocal compensation between the parties. “Knock for knock” is also used in a specific analog sense, z.B. in the “Law at War” of the U.S. Army website : Additional formulations are often added to change the effect of hitting to strike. The surprising aspect of the typing system for those who are not used to it is the fact that there is no notion of a “mistake” in sharing responsibility for the parties and their “groups” – liability is exclusively determined by the relationship of staff with a party and by the ownership of the assets (although, as noted below, certain restrictions may be attached to this general principle both contractually and by applicable law). The reason is the economic and administrative efficiency: while an insurer may be able to track a recovery from the party responsible for an accident or to its policyholder, it is an expensive administrative procedure. The Knock-for-Knock agreement simplifies recovery rights among insurers and, over time, costs are fair to insurers. It is customary to exclude the coup for toc compensation provision from the overall ceiling of liability under the contract and from any exclusion of “consecutive losses” (as defined in the agreement). However, snack agreements have been criticized by insurers as unfair to the party not responsible for an accident. If, for reasons of administrative facilitation, the insurer pays to repair the damage suffered by its own insured instead of prosecuting the person responsible for the accident for all relevant costs, an effective claim is claimed against the insurance card of that policyholder. In this way, “toc-to-knock” agreements can lead policyholders to unexpectedly realize, when renewing their insurance, that they should expect higher premiums, regardless of the liability of an accident in which they participated. “Knock for knock” is a joint contractual agreement in the oil and gas industry.
 The operator of an oil and gas property needs the help and know-how of many types of contractors, including drilling companies, drilling service providers, facility builders, equipment suppliers and caterers. As a general rule, the operator will use these services as part of a master service contract that defines the essential general conditions under which the work is performed. One of these conditions is the distribution of the risk of loss between people and property. In general, a knock-for-knock agreement means that any party working on an oil and gas site – the operator and any contractor – agrees to protect and compensate all other parties against violations by employees and agents of that party as well as the destruction or damage of that party`s property.