8 December 1942 Construction began with the laying of the keel at the Cramp Shipbuilding Company, Philadelphia, Pennsylvania.
20 February 1944 Ship launched.
22 December 1944 USS Oklahoma City was commissioned at 1500 at the Navy Yard, Philadelphia, Pa. Rear Admiral W.F. Draemel accepted the ship from the builders, Cramp Shipbuilding Company, Philadelphia, Pa., and turned the vessel over to Captain C.B. Hunt, U.S. Navy, who assumed command. Guests at commissioning ceremony included Mrs. Anton H. Classen, ship's sponsor.
22 December 1944 - 14 January 1945 At Navy Yard, Philadelphia, Pa., for completion of fitting out period. Attached to Commandant, Fourth Naval District.
14 January 1945 Underway for trial run in Delaware River.
15 - 26 January 1945 This period was spent fitting out, taking on stores and ammunition and running tests prior to shakedown cruise at Navy Yard, Philadelphia and the lower Delaware Bay.
26 January 1945 Held structural firing tests after leaving lower Delaware Bay,
27 January - 10 February 1945 Training period in Chesapeake Bay area and in route to Trinidad, British West Indies, for shakedown. Accompanied by USS Topeka (CL-67).
10 - 28 February 1945 Operating in Gulf of Paria, Trinidad, British West Indies, for shakedown and training exercises.
28 February - 4 March 1945 En route from Trinidad, British West Indies to NOB, Norfolk, Virginia, in company with USS Topeka (CL-67).
5 - 6 March l945 Annual Military inspection by COTCLant and his Staff at NOB, Norfolk, Virginia.
7 - 10 March 1945 En route to Navy Yard, Philadelphia, Pennsylvania.
11 - 31 March 1945 At Navy Yard, Philadelphia, for post shakedown period.
9 April 1945 Underway for Guantanamo Bay, Cuba for various training and gunnery exercises in company with USS Topeka (CL-67).
16 - 17 April l945 Exercises in Guantanamo Bay, Cuba area. Underway for Panama Canal Zone in company with USS Topeka (CL-67).
19 April 1945 Entered Cristobal Harbor, Canal Zone. Reported for duty to CinCPac. Transited Panama Canal to Balboa, Canal Zone.
21 April 1945 Underway for Pearl Harbor, Territory of Hawaii, in company with USS Topeka (CL-67).
2 May 1945 Entered Pearl Harbor, Territory of Hawaii, reported to ComCruPac for duty.
3 - 7 May 1945 Underway training period in Hawaiian operating area.
8 - 11 May 1945 At Navy Yard, Pearl Harbor, Territory of Hawaii.
12 - 19 May 1945 Underway training period in Hawaiian operating area in company with USS Topeka (CL-67).
19 - 21 May 1945 At anchor in Pearl Harbor, Territory of Hawaii.
22 May 1945 Underway to Ulithi in company with USS Topeka (CL-67).
1 June 1945 Anchored in Ulithi lagoon.
4 June 1945 Joined Task Group 30.8 for temporary duty.
17 June 1945 Joined Task Unit 32.1.3 for operations against Sakishima Gunto in support of Okinawa campaign.
20 June 1945 Detached from Task Unit 32.1.3 and proceeded to Leyte, Philippine Islands, in accordance with orders from Commander Task Force 31.
23 June - 1 July 1945 Anchored in Leyte Gulf, P.I.
1 July 1945 Underway with Task Group 38.1 for strikes against Japanese home islands.
18 July 1945 Released from Task Group 38.1 and formed Task Group 35.4 with USS Topeka (CL-67) (CTG 35.4, ComCruDiv 18), USS Atlanta (CL-51), USS Dayton (CL-105) and DesRon 62 for surface sweep at entrance to Sagami Wan. Bombarded Nojima Cape.
20 July - 15 August 1945 Rejoined Task Group 38.1. Continued air operations against Japanese home islands.
15 August 1945 Received AlNav from SecNav that Japan had accepted Potsdam peace terms. Received order to cease present operation.
15 August - 5 September 1945 On patrol duty off Japan with Task Group 38.1.
5 - 10 September 1945 Became a unit of Task Group 38.2, continuing patrol duty off eastern coast of Japan.
10 September 1945 Entered Tokyo Bay with Task Group 38.2.
10 - 15 September 1945 At anchor in Tokyo Bay off Yokahoma.
15 - 20 September 1945 Sortied from Tokyo Bay, continued patrol duty with Task Group 38.2.
20 September 1945 Task Group 38.2 changed to Fifth Fleet, became Task Group 58.2.
21 September 1945 Formed Task Unit 58.2.12, USS Flint (CL-97) CTU 58.2.12 and ComTaskF1ot 3.
21 - 26 September 1945 En route in company with the cruiser USS Flint (CL-97) and escorting destroyers for Eniwetok Atoll, Western Marshall Islands.
13 October 1945 Returned to Tokyo Bay 13 October and conducted local operations from that port
10 - 12 November 1945 Sailed for Hiro Wan (the bay between Hiroshima and Matsuyama).
14 November 1945 Captain D.L. Madeira, in command of Oklahoma City, relieved Rear Admiral Ralph S. Riggs as area commander and assumed command of Task Group 55.3.
27 November 1945 Captain Madeira relinquished this command to Rear Admiral Emmet P. Forrestal in USS Baltimore (CA-68) at Kure, Japan 27 November 1945.
30 November - 1 December 1945 Oklahoma City sailed for Sasebo, arriving 1 December 1945.
1 December 1945 - 30 January 1946 In port Sasebo, Japan.
3 December 1945 Commodore G. Van Deurs, U.S.N., Commander Task Group 55.2, hoisted his flag in Oklahoma City.
29 January 1946 G. Van Deurs, U.S.N., Commander Task Group 55.2, shifted his flag to the USS Atlanta (CL-104).
30 January - 14 February 1946 On 30 January Oklahoma City departed Sasebo for the United States. She arrived at San Francisco 14 February.
15 August 1946 Oklahoma City entered the Mare Island Navy Yard for inactivation.
30 June 1947 Oklahoma City was placed out of commission and assigned to the San Francisco Group, U.S. Pacific Reserve Fleet.