American Airlines ($14.2 million bldg. sale)
Southwestern Power Admin ($7.1 million bldg. sale)
One Memorial Place ($6.9 million bldg. sale)
Amoco (212,285 sf)
McLeodUSA (162,000 sf)
Samuel Steel (101,100 sf)
Cimarex Energy (71,546 sf)
The Williams Companies (70,730 sf)
L-3 Technologies (59,865 sf)
Harrision House Publishing (58,750 sf).
Midstates Petroleum 2013 (56,096 sf)
L-3 Communications (54,500 sf)
Dresser/John Brown (51,319 sf)
Internal Revenue Service (51,121 sf)
U.S Corp of Engineers (48,110 sf)
Midstates Petoleum 2016 (48,057 sf)
The Williams Companies (47,680 sf)
Sonoco Products (46,000 sf)
Southwest Power Admin. (40,300 sf)
Casillas Petroleum (40,606 sf)
L-3 Communications (37,000 sf)
Encompass (34,367 sf)
Agricultural Minerals Corp (33,801 sf)
Latigo Petroleum (33,698 sf)
McAfee & Taft Law Firm (32,298 sf)
Williams Telecommunications (30,837 sf)
The Summit Club (30,696 sf)
L-3 Communications (28,291 sf)
Vintage Petroleum (28,773 sf)
Ernst & Young (28,306 sf)
Red Man Pipe and Supply (27,207 sf)
Alliance Coal (26,736 sf)
Samson Resources (26,121 sf)
Atkinson Haskins Law Firm (24,916 sf)
Shared Medical Systems (24,298 sf)
Cavalry Investments (24,151 sf)
KCS/Medallion (23,616 sf)
Honor Books (23,500 sf)
HarrisonHouse Publishing (23,500 sf)
Arthur Andersen (23,456 sf)
ETX Energy (23,294 sf)
SK Plymouth (23,294 sf)
Merrill Lynch (22,655 sf)
Coopers and Lybrand (22,510 sf)
Internal Data Management (22,000 sf)
Explorer Pipeline (21,312 sf)
WorldConnect (20,330 sf)
Associated Resources (20,031 sf)
McAfee & Taft Law Firm (18,900 sf)
Tower I Executive Suites (18,627 sf)
Flint Construction Services (18,217 sf)
Santa Fe Energy (18,627 sf)
Ladd Petroleum (18,627 sf)
Deloitte and Touche (18,627 sf)
Century Healthcare (17,849 sf)
HQ Global (17,527 sf)
Alexander & Alexander (17,498 sf)
Williams Pipeline (17,048 sf)
Laredo Petroleum (16,120 sf)
Johnson Brokers (16,247 sf)
Rodolf & Todd Law Firm (15,924 sf)
Regus/HQ (15,696 sf)
Willbros Engineers (15,657 sf)
BKD Accounting (15,151 sf)
Franden Farris Law Firm (15,141 sf)
Dean Witter Reynolds (15,123 sf)
CNG Producing Company (15,004 sf)
Purolator Products (14,800 sf)
Marsh & McLennan (14,752 sf)
Wiltel (14,326 sf)
The Williams Companies (14,114 sf)
Bekins Corporation (13,634 sf)
Holmes Organization (13,555 sf)
Gary Sparks Company (13,609 sf)
Sneed Lang Law Firm (13,208 sf)
Smith Container (12,998 sf)
Barber & Bartz Law Firm (12,915 sf)
Tulsa Public Defenders Office (12,802 sf)
County Commissioners Office (12,802)
Cisco Systems, Inc. (12,557sf)
Cimcase International (12,410 sf)
Capital Management Co. (12,143 sf)
Oxley Petroleum (12,057 sf)
The Zarrow Foundation (11,955)
Natcom Publishing (11,750 sf)
Faith Christian Fellowship (11,750 sf)
Triumph Energy Partners (8,386 sf)
Pittsburgh Glass (11,616 sf)
Cimcase International (10,655 sf)
Jones, Givens Law Firm (10,733 sf)
Millbrae Energy (10,357 sf)
Titus, Hillis, Reynolds Law (10,165 sf)
Strat Land Exploration (10,165 sf)
iRecommend Software (10,165 sf)
Rockford Energy (10,165 sf)
Cannon Energy (10,165 sf)
Gibbs Armstrong Law Firm (10,135 sf)
Council Oak Resources (11,799 sf)
Crawford and Company (9,212 sf)
DH Pace (8,553 sf)
TMA Systems (9,208 sf)
Re/Max Realtors (9,030 sf)
New England Financial (9,030 sf)
Numanco (8,953 sf)
Global Interface Solutions (8,648 sf)
Poe and Associates (8,562 sf)
Hewlett Packard (8,257 sf)
B and R Supply (8,159 sf)
Ward Gas and Marketing (7,875 sf)
Winters, King Law Firm (7,800 sf)
Landmark Graphics (7,790 sf)
Pierce Couch Law Firm (7,785 sf)
Accelerated Lift Systems (10,398 sf)
Program Management Corp (7,785 sf)
Deck Oil Company (7,433 sf)
Gagle Corporation (7,425 sf)
Willbros Engineers (7,404 sf)
Hospice of Green Country (7,400 sf)
Centrilift Hughes (7,304 sf)
Amoco (7,250 sf)
Southwestern Bell Telecom (7,250 sf)
Vyvx Inc. (7,106 sf)
Enron Gas Marketing (6,699 sf)
Spectrum Field Services (6,656 sf)
Physicians Sales and Service (6,442 sf)
DHL Airways (6,341 sf)
McCormick, Andrew & Clark (6,336 sf)
J.C. Penny District Office (6,216 sf)
Mid-Continent Energy (6,163 sf)
Silverado Foods (6,157 sf)
Transwestern Mining (6,150 sf)
Niject Services (6,007 sf)
Cimarron Acid & Frac (9,095 sf)
Open Bible Fellowship (6,000 sf)
In The Raw Sushi (5,850 sf)
QuikTrip Corporation (5,850 sf)
Gardere & Wynne Law Firm (5,812 sf)
Cisco Systems, Inc. (5,808 sf)
New England Mutual Life (5,793 sf)
Epic Computer (5,770 sf)
Gordon & Assc. Law Firm (5,734 sf)
Vyvx Inc. (5,731 sf)
Harrison House Inc. (5,670 sf)
LaSorsa, Weber Law Firm (5,435 sf)
Anchor Stone Co. (5,427)
Triad Bank (5,212 sf)
First Title and Escrow (5,124 sf)
American Airlines (5,100 sf)
Educational Concepts (7,931 sf)
Motorola Communications (5,040sf)
