1 | Names of Reporting Persons
Schlumberger N.V. (Schlumberger Limited) |
2 | Check the appropriate box if a member of a Group (see
instructions)

(a) 
(b) |
3 | Sec Use Only |
4 | Citizenship or Place of Organization
NETHERLANDS ANTILLES |
Number of Shares Beneficially Owned by Each
Reporting Person With: | 5 | Sole Voting Power
0.00 | 6 | Shared Voting Power
296,226.00 | 7 | Sole Dispositive Power
0.00 | 8 | Shared Dispositive Power
296,226.00 |
|
9 | Aggregate Amount Beneficially Owned by Each Reporting
Person
296,226.00 |
10 | Check box if the aggregate amount in row (9) excludes
certain shares (See Instructions)
 |
11 | Percent of class represented by amount in row (9)
4.6 % |
12 | Type of Reporting Person (See Instructions)
HC |
Comment for Type of Reporting Person:
Includes 55,033 additional shares of Common Stock that Schlumberger Technology Corporation ("STC") has the right to receive if, on or before December 16, 2026, the Common Stock meets or exceeds certain target prices as set forth in the Merger Agreement ("Merger Agreement"), dated as of December 16, 2021, as amended on January 30, 2022 and June 6, 2022, by and among CleanTech Acquisition Corp., CleanTech Merger Sub, Inc., Nauticus Robotics, Inc., and Nicolaus Radford, solely in his capacity as the stockholder representative.
Based on 6,407,475 shares of Common Stock outstanding as of November 11, 2024, as reported on the Form 10-Q submitted by the Issuer to the SEC on November 12, 2024.
1 | Names of Reporting Persons
Schlumberger B.V. |
2 | Check the appropriate box if a member of a Group (see
instructions)

(a) 
(b) |
3 | Sec Use Only |
4 | Citizenship or Place of Organization
NETHERLANDS |
Number of Shares Beneficially Owned by Each
Reporting Person With: | 5 | Sole Voting Power
0.00 | 6 | Shared Voting Power
296,226.00 | 7 | Sole Dispositive Power
0.00 | 8 | Shared Dispositive Power
296,226.00 |
|
9 | Aggregate Amount Beneficially Owned by Each Reporting
Person
296,226.00 |
10 | Check box if the aggregate amount in row (9) excludes
certain shares (See Instructions)
 |
11 | Percent of class represented by amount in row (9)
4.6 % |
12 | Type of Reporting Person (See Instructions)
HC |
Comment for Type of Reporting Person:
Includes 55,033 additional shares of Common Stock that STC has the right to receive if, on or before December 16, 2026, the Common Stock meets or exceeds certain target prices as set forth in the Merger Agreement.
Based on 6,407,475 shares of Common Stock outstanding as of November 11, 2024, as reported on the Form 10-Q submitted by the Issuer to the SEC on November 12, 2024.
1 | Names of Reporting Persons
Schlumberger Holdings Corporation |
2 | Check the appropriate box if a member of a Group (see
instructions)

(a) 
(b) |
3 | Sec Use Only |
4 | Citizenship or Place of Organization
DELAWARE |
Number of Shares Beneficially Owned by Each
Reporting Person With: | 5 | Sole Voting Power
0.00 | 6 | Shared Voting Power
296,226.00 | 7 | Sole Dispositive Power
0.00 | 8 | Shared Dispositive Power
296,226.00 |
|
9 | Aggregate Amount Beneficially Owned by Each Reporting
Person
296,226.00 |
10 | Check box if the aggregate amount in row (9) excludes
certain shares (See Instructions)
 |
11 | Percent of class represented by amount in row (9)
4.6 % |
12 | Type of Reporting Person (See Instructions)
HC |
Comment for Type of Reporting Person:
Includes 55,033 additional shares of Common Stock that STC has the right to receive if, on or before December 16, 2026, the Common Stock meets or exceeds certain target prices as set forth in the Merger Agreement.
Based on 6,407,475 shares of Common Stock outstanding as of November 11, 2024, as reported on the Form 10-Q submitted by the Issuer to the SEC on November 12, 2024.
1 | Names of Reporting Persons
Schlumberger Technology Corporation |
2 | Check the appropriate box if a member of a Group (see
instructions)

(a) 
(b) |
3 | Sec Use Only |
4 | Citizenship or Place of Organization
TEXAS |
Number of Shares Beneficially Owned by Each
Reporting Person With: | 5 | Sole Voting Power
0.00 | 6 | Shared Voting Power
296,226.00 | 7 | Sole Dispositive Power
0.00 | 8 | Shared Dispositive Power
296,226.00 |
|
9 | Aggregate Amount Beneficially Owned by Each Reporting
Person
296,226.00 |
10 | Check box if the aggregate amount in row (9) excludes
certain shares (See Instructions)
 |
11 | Percent of class represented by amount in row (9)
4.6 % |
12 | Type of Reporting Person (See Instructions)
CO |
Comment for Type of Reporting Person:
Includes 55,033 additional shares of Common Stock that STC has the right to receive if, on or before December 16, 2026, the Common Stock meets or exceeds certain target prices as set forth in the Merger Agreement.
Based on 6,407,475 shares of Common Stock outstanding as of November 11, 2024, as reported on the Form 10-Q submitted by the Issuer to the SEC on November 12, 2024.