In this personal injury case, we are primarily concerned with the questions of duty and causation. Here, an oil rig worker sustained an injury while working for his employer on the employer’s oil drilling rig. At the time of the injury, the employer was operating as an independent contractor for the oil company that owned the platform on which the rig was located. The oil rig worker’s. wife and child sued the oil company for negligently causing the injury. The.district court granted summary judgment to the oil company on the basis that the oil company was not responsible for the negligent acts of the independent contractor and committed no *645 negligent acts itself that caused the injury, Finding no reversible error, we affirm.
I
Amoco Oil Company (“Amoco”) owned an offshore drilling platform affixed to the Outer Continental Shelf of the Gulf of Mexico off the State of Louisiana. Amoco hired Dual Drilling Company (“Dual”) to drill several wells from the platform. On December 2, 1990, David Graham, a Dual employee, was working on Dual Rig 23 that was located on Amoco’s platform. The rig was rated as being capable of drilling wells to 20,000 feet. Amoco ordered and delivered a load of 14,100 feet of 11/4" casing pipe to the Dual rig for the drilling of the well listed as A-3. Pursuant to the contract, a team of Dual employees, supervised by Denis Riley, another Dual employee, unloaded the easing onto the rig. The Dual rig had two cranes affixed to it, and Riley operated one of these cranes as it picked up two lengths of casing from the delivery ship and .placed them onto pipe racks onboard the rig. Because of the volume of casing being unloaded, casing and drill pipe covered the floor of the rig. Graham was standing on some of this drill pipe as he helped guide two pieces of casing that Riley’s crane was loading onto the pipe racks. Because Graham was standing on the drill pipe, his head was a few feet higher than normal. When the casing swung toward him, Graham ducked, but he was too late as the easing caught his head against the second crane and crushed it leaving Graham in a comatose state.
II
Graham’s wife and child brought this action against Amoco on behalf of Graham for his injuries and on their own behalves for their loss of consortium. The plaintiffs alleged, inter alia, that Amoco was negligent in two ways: first, it delivered too much casing to the Dual rig at one time; and second, its “company man” failed to stop the unsafe unloading operation. The district court granted summary judgment to Amoco on the grounds that: (1) Amoco was immune from liability for the acts of Dual as an independent contractor; and (2) Amoco’s ordering of the casing was not the legal cause of Graham’s injury.
III
We review the summary judgment
de novo
using the same standards that guided the district court.
DFW Metro Line Servs. v. Southwestern Bell Tel. Co.,
Louisiana law provides the general rule that a principal is not liable for the negligent acts of an independent contractor acting pursuant to the contract.
Bartholomew v. CNG Producing Co.,
In the instant case, we must determine whether Amoco is liable for the acts of Dual under the second exception to the general rule; that is, whether Amoco retained control over, or expressly or impliedly authorized, Dual’s unloading activities that resulted in Graham’s' injury. Further, we must determine if Amoco is liable under principles of negligence for its own independent acts of *646 ordering and delivering the shipment of casing to Dual’s rig.
IV
First, the plaintiffs argue that Amoco is liable for the unloading activities of Dual under the second exception to the general rule of immunity for the acts of an independent contractor. Specifically, they argue that Amoco is liable for Graham’s injury because it’s “company man,” Dudley Blanchard, authorized the payment for the extra men necessary to unload the large order of casing, and he inspected the color codes on the casing. Further, the plaintiffs assert that Blanchard was present on the Dual rig during the unloading, saw the unsafe conditions created by the excess amounts of casing stacked on the rig — including the danger that a worker would be pinned against a crane while standing on a stack of drill pipe that covered the floor of the rig — and did not stop the operation.
We are faced, however, with Amoco’s contract with Dual that provided:
Contractor [i.e., Dual,] shall be solely responsible for the supervision of the following operations of the Rig as appropriate: towing, rigging up, positioning on drilling locations, rigging down, loading and unloading operations on and off the Rig, and including also such operations onboard said Rig as may be necessary or desirable for the safety of said Rig.
(Emphases added).
The contract also provided that although Amoco retained the right to inspect the work site as the project progressed, it was “interested only in the results obtained.”
In
Ainsworth v. Shell Offshore, Inc.,
It is true, as Graham points out, that in
Bartholomew,
Nor do the facts here permit a conclusion that Amoco impliedly authorized the condition that caused Graham’s injury. In
Williams,
V
Second, the plaintiffs argue that Amoco is liable for its own independent acts of negligence. Specifically, plaintiffs allege that Amoco was negligent in creating an unsafe work place by ordering the large load of casing to be delivered to the Dual rig in one shipment without notification to Dual.
See Frick v. Ensor,
A
The plaintiffs’ argument principally concerns the duty, if any, that Amoco owed to Graham. Duty is a question of law.
Harris v. Pizza Hut of Louisiana, Inc.
Nor did Amoco assume an ex-contract duty to provide a safe work place. In
Davenport,
The plaintiffs .further argue that Amoco’s internal safety manual indicates that certain practices Dual followed were unsafe, i.e., stacking an excessive amount of casing
*648
and stacking drill pipe in the walkways, and that the “company man” had the authority and obligation to stop the operation and correct the overstacking problem. The contract, however, expressly states that the contract itself is the sole governing agreement. Furthermore, the contract expressly provides that prior and future contracts, agreements, or work orders will not alter or amend its terms. The contract never adopted Amoco’s safety manual; instead, the contract provides that Dual shall “observe safe industry working practices.” Thus, the express words of the governing contract obviate the plaintiffs’ attempt to impose extra-contractual standards on the parties.
See Crane,
Finally, Amoeo’s “company man” did not affirmatively assume any duty to provide Dual’s employees with a safe work place simply by observing their unsafe work habits. In
Crane,
Amoeo’s only duty was to provide a sufficient amount of casing of suitable quality to case the A-3 well. Amoco’s delivery of 14,-100 feet of 11%" easing in one shipment to Dual’s rig that was rated with a capability of drilling 20,000 feet did not breach this duty.
B
Even assuming arguendo that Amoco had the duty to deliver less casing than it did, and/or the duty to notify Dual of the exact amount of casing to be delivered, 2 the plaintiffs’ claim still fails because of the lack of legal causation. The Louisiana Supreme Court has held:
Negligence is only actionable where it is both a cause in fact of the injury and a legal cause of the injury. Legal cause requires a proximate relation between the actions of a defendant and the harm which occurs and such relation must be substantial in character.
Sinitiere v. Lavergne,
In
Sutton v. Duplessis,
Similarly, in the instant case, although we may assume there was factual causation, i.e., Graham would not have been injured by the casing if Amoco had never delivered it, such delivery was not the legal cause of Graham’s injury. We reach this conclusion because Dual’s negligence in unloading the casing and supervising Graham superseded any arguable negligence on the part of Amoco.
Further, the delivery in and of itself is too remote to constitute the legal cause of Graham’s injury. The plaintiffs have been unable to point us to a case in which the order and delivery of goods or materials was held to be the proximate cause of an injury that occurred during unloading of those good or materials. In
United States Steel Corp. v. McCraney,
Under settled law, the loader of a shipment has the right to assume that the consignee or those who are in charge of the unloading for him will take proper precautions to avoid injury, and where, as here, it appears that plaintiffs injury was not due at all to negligence in the loading but solely to the failure of plaintiffs employer and of the plaintiff to take proper precautions in unloading, it must be held, as a matter of law, that defendant was not negligent.
(Emphases added).
We find this logic compelling in the instant case. Amoco merely ordered and delivered the casing. Amoco could reasonably assume that Dual would properly fulfill the duties to which Dual voluntarily agreed to be contractually bound. In fact, Dual made all decisions after the delivery, including whether to unload the casing, how much of the casing to unload, how and where to stack the casing and drill pipe on its rig, and how to supervise its employees — including Graham. Thus, we hold that the ordering and delivery of the casing was not substantially related to Graham’s injury and, thus, did not constitute the cause of that injury.
See Sinitiere,
VI
For the foregoing reasons, the judgment of the district court is
AFFIRMED.
Notes
. The cases cited by the plaintiffs do not change this result. In
Frick,
. Amoco submitted a "Form 46” that states the amount of pipe to be used on well A-3 to the district court. Although the form is dated two months before the accident and would have put Dual on notice as to how much pipe was being ordered, Dual asserts that it never received the form and, for summary judgment purposes, we accept Dual's version of the facts.
See. DFW,
