What changed in this filing

/stocks — the workspaceLOADING

Item 2. Properties

2021-02-25 compared with 2020-02-27 · 22 added, 9 removed, 22 unchanged (58% of the section changed)

VESSELS AND OTHER OPERATING ASSETS

Our fleet currently includes six vessels, six IRSs, three SILs, one ROAM, 44 ROVs, four trenchers and one ROVDrill.

We also have four vessels under long-term charter.

Currently all of our vessels, both owned and chartered, have DP capabilities specifically designed to meet the needs of our customers’ offshore and deepwater activities.

As of December 31, 2020, our fleet included six vessels, six IRSs, three SILs, the ROAM, 44 ROVs, four trenchers and one ROVDrill.

We also had four vessels under long-term charter.

All of our vessels, both owned and chartered, have DP capabilities specifically designed to meet the needs of our customers’ offshore and deepwater activities.

Our Seawell and Well Enhancer vessels have built-in saturation diving systems.

Listing of Vessels and Other Assets Related to Operations (1)

Listing of Vessels and Other Assets Related to Operations as of December 31, 2020 (1)

Floating Production Unit —

Helix Producer I (3)

Bahamas 4/2009 528 DP2

Well Intervention —

4/2002 312 DP3

7/2002 368 DP2

Well Enhancer (3)

10/2009 432 DP2

Bahamas 4/2015 358 DP3

Siem Helix 1 (6)

Bahamas 6/2016 521 DP3

Siem Helix 2 (6)

6 IRSs, 3 SILs and 1 ROAM (7)

Bahamas 2/2017 521 DP3

Q7000 Bahamas 1/2020 320 DP3

6 IRSs, 3 SILs and the ROAM (7)

— Various — —

44 ROVs, 4 Trenchers and 1 ROVDrill (3), (8)

— Various — —

Grand Canyon II (6)

Norway 4/2015 419 DP3

Grand Canyon III (6)

Under governmental regulations and our insurance policies, we are required to maintain our vessels in accordance with standards of seaworthiness and safety set by governmental regulations and classification organizations.

Norway 5/2017 419 DP3

(1) Under governmental regulations and our insurance policies, we are required to maintain our vessels in accordance with standards of seaworthiness, safety and health set by governmental regulations and classification organizations.

We maintain our fleet to the standards for seaworthiness, safety and health set by the ABS, Bureau Veritas (“BV”), Det Norske Veritas (“DNV”), Lloyds Register of Shipping (“Lloyds”), and the Coast Guard.

2 unchanged sentences

(3) Serves as security for the Credit Agreement described in Note 8.

The Seawell was pledged as security beginning in July 2020 as was the Well Enhancer beginning in February 2021.

(4) Subject to a vessel mortgage securing our MARAD Debt described in Note 8.

(5) Serves as security for our Nordea Q5000 Loan described in Note 8.

Chartered vessel.

We own a 50% interest in the 15K IRS and the ROAM, both of which we jointly developed with OneSubsea.

(6) Vessel under long-term charter agreement.

(7) We own a 50% interest in the 15K IRS and the ROAM, both of which we jointly developed with Schlumberger.

(8) Average age of our fleet of ROVs, trenchers and ROVDrill is approximately 10.5 years.

1 unchanged sentence

In addition to complying with these requirements, we have our own asset maintenance programs that we believe permit us to continue to provide our customers with well-maintained, reliable assets.

In the normal course of business, we charter other vessels on a short-term basis, such as tugboats, cargo barges, utility boats and additional robotics support vessels.

In the normal course of business, we charter spot vessels, such as tugboats, cargo barges, utility boats and additional robotics support vessels.

Our corporate headquarters are located at 3505 West Sam Houston Parkway North, Suite 400, Houston, Texas 77043.

1 unchanged sentence

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-K

Item 2. Properties