| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 497.52a | 461.57a |
| Accounts receivable, net of allowances for doubtful accounts of $2,885 and $2,804 | 303.58a | 331.33a |
| Contract assets | 275.28a | 234.51a |
| Inventory, net | 222.85a | 209.8a |
| Other current assets | 88.67a | 68.46a |
| Total current assets | 1,387.9a | 1,305.66a |
| Property and equipment, at cost | 2,156.39a | 2,285.9a |
| Less accumulated depreciation | 1,736.29a | 1,861.6a |
| Net property and equipment | 420.1a | 424.29a |
| Other assets | — | — |
| Goodwill | 49.35a | 34.21a |
| Other noncurrent assets | 144.28a | 137.29a |
| Right-of-use operating lease assets | 334.72a | 337.55a |
| Total other assets | 528.35a | 509.05a |
| Total assets | 2,336.35a | 2,239.01a |
| Liabilities and equity | — | — |
| Current liabilities | — | — |
| Accounts payable | 181.51a | 156.06a |
| Accrued liabilities | 474.74a | 411.78a |
| Contract liabilities | 140.7a | 164.63a |
| Total current liabilities | 796.94a | 732.48a |
| Long-term debt | 482.01a | 477.06a |
| Long-term operating lease liabilities | 238.33a | 293.48a |
| Other long-term liabilities | 98.75a | 101.91a |
| Equity | — | — |
| Common stock, par value $0.25 per share; 360,000,000 shares authorized; 110,834,088 shares issued | 27.71a | 27.71a |
| Additional paid-in capital | 98.62a | 131.77a |
| Treasury stock; 10,173,091 and 10,030,200 shares, at cost | -555.35a | -574.38a |
| Retained earnings | 1,572.73a | 1,425.26a |
| Accumulated other comprehensive loss | -429.45a | -382.34a |
| Oceaneering shareholders' equity | 714.26a | 628.02a |
| Noncontrolling interest | 6.06a | 6.06a |
| Total equity | 720.32a | 634.08a |
| Total liabilities and equity | 2,336.35a | 2,239.01a |