Exhibit 10.1

EXTENSION AGREEMENT

Bank of America, N.A.,

as Administrative Agent

under the Five-Year Credit Agreement referred to below

Ladies and Gentlemen:

The undersigned hereby agrees to extend, effective August 24, 2019, the Commitment Termination Date under the Five-Year Credit Agreement dated as of August 24, 2018 (as amended from time to time, the “Five-Year Credit Agreement”) among, inter alios, Lockheed Martin Corporation, the Lenders party thereto and Bank of America, N.A., as Administrative Agent, for one year to August 24, 2024. Terms defined in the Five-Year Credit Agreement are used herein with the same meaning.

This Extension Agreement shall be construed in accordance with and governed by the laws of the State of New York.

[Remainder of page intentionally left blank]

AUSTRALIA AND NEW ZEALAND BANKING GROUP LIMITED

By: /s/ Robert Grillo

Name: Robert Grillo

Title: Director

BANK OF AMERICA, N.A.

By: /s/ Prathamesh Kshirsagar

Name: Prathamesh Kshirsagar

Title: Vice President

BARCLAYS BANK PLC

By: /s/ Craig Malloy

Name: Craig Malloy

Title: Director

CITIBANK, N.A.

By: /s/ Brian Reed

Name: Brian Reed

Title: Vice President

CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK

By: /s/ Gordon Yip

Name: Gordon Yip

Title: Director

By: /s/ Gary Herzog

Name: Gary Herzog

Title: Managing Director

CREDIT INDUSTRIEL ET COMMERCIAL, NEW YORK BRANCH

By: /s/ Eugene Kenny

Name: Eugene Kenny

Title: Vice President

By: /s/ Nicolas Regent

Name: Nicolas Regent

Title: Vice President

GOLDMAN SACHS BANK USA

By: /s/ Ryan Durkin

Name: Ryan Durkin

Title: Authorized Signatory

JPMORGAN CHASE BANK, N.A.

By: /s/ Robert P. Kellas

Name: Robert P. Kellas

Title: Executive Director

LLOYDS BANK CORPORATE MARKETS PLC

By: /s/ Kamala Basdeo

Name: Kamala Basdeo

Title: Assistant Manager, Transaction Execution, Category A B002

By: /s/ Tina Wong

Name: Tina Wong

Title: Assistant Manager, Transaction Execution, Category A W011

MIZUHO BANK, LTD.

By: /s/ Donna DeMagistris

Name: Donna DeMagistris

Title: Authorized Signatory

MORGAN STANLEY BANK, N.A.

By: /s/ Michael King

Name: Michael King

Title: Authorized Signatory

MUFG BANK, LTD., as Lender

By: /s/ Thomas Sterr

Name: Thomas Sterr

Title: Authorized Signatory

THE NORTHERN TRUST COMPANY, as Lender

By: /s/ Kimberly A. Crotty

Name: Kimberly A. Crotty

Title: Vice President

RIYAD BANK, HOUSTON AGENCY

By: /s/ Michael Meiss

Name: Michael Meiss

Title: General Manager

By: /s/ Manny Cafeo

Name: Manny Cafeo

Title: Vice President, Operations Manager

ROYAL BANK OF CANADA

By: /s/ Richard C. Smith

Name: Richard C. Smith

Title: Authorized Signatory

STATE STREET BANK AND TRUST COMPANY

By: /s/ Busola Laguda

Name: Busola Laguda

Title: Vice President

SUMITOMO MITSUI BANKING CORPORATION

By: /s/ Michael Maguire

Name: Michael Maguire

Title: Executive Director

THE TORONTO DOMINION BANK, NEW YORK BRANCH

By: /s/ Michael Borowiecki

Name: Michael Borowiecki

Title: Authorized Signatory

U.S. BANK NATIONAL ASSOCIATION

By: /s/ Ken Gorski

Name: Ken Gorski

Title: Vice President

UNICREDIT BANK AG, NEW YORK BRANCH

By: /s/ Filippo Pappalardo

Name: Filippo Pappalardo

Title: Managing Director

By: /s/ Tommaso Maiocchi

Name: Tommaso Maiocchi

Title: Associate Director

WELLS FARGO BANK, N.A.

By: /s/ Adam Spreyer

Name: Adam Spreyer

Title: Director

Agreed and accepted:

LOCKHEED MARTIN CORPORATION

By: /s/ John W. Mollard

Name: John W. Mollard

Title: Vice President and Treasurer

BANK OF AMERICA, N.A., as

Administrative Agent

By: /s/ Kyle D. Harding

Name: Kyle D. Harding

Title: Assistant Vice President