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Johnson Rice Energy ConferenceJeffrey M. PlattPresident & CEOJoseph M. BennettEVP & Chief IROOctober 1, 2014

TIDEWATER601 Poydras Street, Suite 1500, New Orleans, LA 70130FORWARD-LOOKING STATEMENTSIn accordance with the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, the Companynotes that certain statements set forth in this presentation provide other than historical information and are forwardlooking. The actual achievement of any forecasted results, or the unfolding of future economic or businessdevelopments in a way anticipated or projected by the Company, involve numerous risks and uncertainties that maycause the Company’s actual performance to be materially different from that stated or implied in the forward-lookingstatement. Among those risks and uncertainties, many of which are beyond the control of the Company, include,without limitation, fluctuations in worldwide energy demand and oil and gas prices; fleet additions by competitorsand industry overcapacity; changes in capital spending by customers in the energy industry for offshore exploration,development and production; changing customer demands for different vessel specifications, which may make someof our older vessels technologically obsolete for certain customer projects or in certain markets; uncertainty of globalfinancial market conditions and difficulty accessing credit or capital; acts of terrorism and piracy; significant weatherconditions; unsettled political conditions, war, civil unrest and governmental actions, such as expropriation orenforcement of customs or other laws that are not well-developed or consistently enforced, especially in higherpolitical risk countries where we operate; foreign currency fluctuations; labor changes proposed by internationalconventions; increased regulatory burdens and oversight; and enforcement of laws related to the environment, laborand foreign corrupt practices. Readers should consider all of these risks factors, as well as other informationcontained in the Company’s form 10-K’s and 10-Q’s.Phone: 504.568.1010 Fax: 504.566.4580Web site address: www.tdw.comEmail: connect@tdw.comJohnson Rice Energy Conference2

Key Tidewater Takeaways Consistent goal of “Best in Class” safety and compliance culture Largest “NEW” OSV fleet in the industry, operating in over50 countries with 9,000 employees worldwide History of earnings growth and solid returns “Offshore” is and will continue to be relevant. Constructivefundamental backdrop for the OSV industry Continued solid financial position, with considerable readyliquidity, a reasonable debt level, minor debt maturitiesuntil FY2019 and expected reduced CAPX as major fleetupgrade winds downJohnson Rice Energy Conference3

Safety Record Rivals Leading Companies Safe Operations is Priority #1 Stop Work Obligation Safety performance is 25% of mgt. incentive comp0.70TOTAL RECORDABLE INCIDENT ATER200620072008DOW on Rice Energy Conference4

Working Offshore Rig Trends450420400JackupsWorking Rigs350300258250Floaters200150100Prior peak (summer 14Source: ODS-PetrodataNote: 43 “Other” rigs, along with the Jackups and Floaters, provide a total working rig count of 705 in September 2014.Johnson Rice Energy Conference5

Drivers of our Business “Peak to Present”July 2008(Peak)Jan. 2011 September(Trough)2014Working Rigs603538705Rigs UnderConstruction186118244OSV GlobalPopulation2,0332,5993,223OSV’s UnderConstruction736367455OSV/Rig Ratio3.374.834.57Working offshore rigcount is expected to growMarketed OSV populationshould decrease asattrition exceedsnewbuild deliveriesOSV/Rig Ratio shouldremain well balancedSource: ODS-Petrodata and TidewaterJohnson Rice Energy Conference6

The Worldwide OSV Fleet(Includes AHTs and PSVs only) Estimated as of September 2014As of September 2014, there are approximately 455 additionalAHTS and PSV’s ( 14% of the global fleet) under construction.300Number of Vessels Built(AHTS & PSV)250Vessels 25 years old today2001501005001965 1970 1975 1980 1985 1990 1995 2000 2005 2010Global fleet is estimated at 3,223 vessels, including 700 vessels that are 25 yrs old (25%).Source: ODS-Petrodata and TidewaterJohnson Rice Energy Conference7

Tidewater’s Active FleetAs of June 30, 2014Deepwater vesselsTowing Supply/SupplyOther vessels4035244 “New” vessels – 6.9 avg yrs21 “Traditional” vessels – 26.7 avg yrsNumber of 52010Year BuiltJohnson Rice Energy Conference8

Vessel Population by Owner(AHTS and PSVs only) Estimated as of September or #1Competitor #2Competitor #3Competitor #4Competitor # 5Avg.All Others (2,473 totalvessels for400 owners)Source: ODS-Petrodata and TidewaterJohnson Rice Energy Conference9

Our Global Footprint – Vessel Count by Region(Excludes stacked vessels – as of 6/30/14)MENA44(17%)Asia/Pac24(9%)Americas69(26%)SS Africa/Europe128(48%)Johnson Rice Energy Conference10

Our Global Footprint – Vessel Class by Region(Excludes stacked vessels – as of 6/30/14)AmericasNewVesselsDeepwater32Towing Supply17Other958NewVesselsDeepwater10Towing Supply31Other041MENAAvg. TraditionalVesselsNBV 19.5M0 10.6M7 3.4M411SSAENewVesselsDeepwater37Towing Supply43Other41121Avg. TraditionalNBVVessels 15.2M1 12.1M0023Avg. TraditionalNBVVessels 28.7M0 12.5M2 1.8M57NewVesselsDeepwater9Towing Supply14Other124Asia/PacAvg. TraditionalVesselsNBV 24.9M0 11.6M0 6.7M00Vessel count info is as of 6/30/14, and includes leased vessels. Avg NBV excludes the impact of leased vessels which have no NBV.Average NBV of the total 21 Traditional vessels is 0.97M at 6/30/14.Johnson Rice Energy Conference11

The Largest Modern OSV Fleet in the IndustryVessel CommitmentsJan. ’00 – June ‘14Vessel Count (2)Total Cost (2)Average Costper VesselDeepwater PSVs102 2,906m 28.5mDeepwater AHTSs12 387m 32.3mTowing Supply/Supply111 1,670m 15.0mOther53 227m 4.3mTOTALS:278 5,190m(1) 18.7m(1) 4.5b (87%) funded through 6/30/14(2). Vessel count and total cost is net of 26 vessel dispositions ( 243M of original cost)(2) Vessel count and total cost is net of 25 vessel dispositions ( 227m of original cost)At 6/30/14, 245 new vessels were in our fleet with 6.9 year average ageJohnson Rice Energy Conference12

and More to ComeVessels Under Construction*As of June 30, 2014CountDeepwater PSVs26Deepwater AHTSs-Towing Supply/Supply6Other1Total33Estimated delivery schedule – 13 in FY ’15, 17 in FY ‘16 and 3 thereafter.CAPX of 391m in FY ’15, 244m in FY ‘16 and 50m thereafter.Johnson Rice Energy Conference13

The Upgrading of the Tidewater Fleet(A 10 Year Review)3/31/05 SnapshotDWT5,000-6,0004,000-4,9993,000-3,999 41028BHP25,000 leet25146171TotalFleet30169199Deepwater PSVDeepwater AHTSTowing SupplyFleet information includes active vessels only.CIP Construction in Process.New Fleet is defined as vessels built or acquired since 2000.6/30/14 SnapshotCurrentNew Fleet CIPDWT5,000-6,0001654,000-4,99911153,000-3,999436 3,000607626CurrentNew FleetBHP25,000 513,500-16,500712CIP000CurrentNew Fleet CIPBHP7,000-10,0003663,000-6,9996901056Johnson Rice Energy ageFleet09914

CAPX Expected to Decreasefrom Recent High LevelsAnnual CAPX (in millions) 1,000 800Amounts in Fiscal 2015-2017 represent known CAPX on only the33 vessels and 2 ROVs under construction as of 6/30/14.Additional CAPX could occur, but trendline is expected down. 600 400 200 02006200720082009Fiscal 2014 is exclusive of Troms acquisition20102011201220132014201520162017Fiscal YearJohnson Rice Energy Conference15

Strong Financial Position ProvidesStrategic OptionalityAs of June 30, 2014Cash & Cash Equivalents 53 millionTotal Debt 1,511 millionShareholders Equity 2,717 millionNet Debt / Net Capitalization35%Total Debt / Capitalization36% 650 million of available liquidity as of 6/30/14, including 600 million ofunused capacity under the company’s revolving credit facility.Johnson Rice Energy Conference16

Debt Maturities as of 6/30/14Limited for Several YearsDebt Maturity (in millions) 800 600 400 200 iscal YearJohnson Rice Energy Conference17

History of Earnings Growth & SolidThrough-Cycle ReturnAdjusted EPS** 7.89Adjusted EPS ** 8.00 5.94 6.39 6.00 5.20 3.33 4.00 2.00 2.40 1.78 3.03 3.69 2.13 1.03 0.00Fiscal Fiscal Fiscal Fiscal Fiscal Fiscal Fiscal Fiscal Fiscal Fiscal Fiscal2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014Adjusted ReturnOn Avg. Equity %EPS in Fiscal 2004 is exclusive of the .30 per share after tax impairment charge. EPS in Fiscal 2006 is exclusive of the .74 per share after tax gain from thesale of six KMAR vessels. EPS in Fiscal 2007 is exclusive of .37 per share of after tax gains from the sale of 14 offshore tugs. EPS in Fiscal 2010 isexclusive of .66 per share Venezuelan provision, a .70 per share tax benefit related to favorable resolution of tax litigation and a 0.22 per share charge forthe proposed settlement with the SEC of the company’s FCPA matter. EPS in Fiscal 2011 is exclusive of total 0.21 per share charges for settlements withDOJ and Government of Nigeria for FCPA matters, a 0.08 per share charge related to participation in a multi-company U.K.-based pension plan and a 0.06per share impairment charge related to certain vessels. EPS in Fiscal 2012 is exclusive of 0.43 per share goodwill impairment charge. EPS in Fiscal 2014 isexclusive of 0.87 per share goodwill impairment charge.Johnson Rice Energy Conference18

Active Vessel Dayrates & Utilization by SegmentAmericasAvg. Dayrate 26,000Asia/PacMENASub Sah Africa/Eur. 22,000 18,000 14,000 10,000 12/116/1212/126/1312/136/14Avg. Utilization100%90%80%70%60%Impact of 7.4 million of retroactive revenue recorded in September 2012 quarter is excluded from 9/12 average dayrates andincluded in the respective March 2012 and June 2012 quarterly average dayrates. Utilization stats exclude stacked vessels.Johnson Rice Energy Conference19

New Vessel Trends by Vessel TypeDeepwater PSVsAverage Day Rate, Adjusted Average Day Rate, and Average Fleet Size 60,000240Q1 Fiscal 2015Avg Day Rate: 30,802Utilization: 86.8% 50,000200 40,000160 30,000120 20,000 10,00054 55 5749 51474540 43 4434 383228 2922 23 24 25 25 25 25626675 76 7669 738040 0Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1FY08FY09Average Fleet SizeFY10FY11Average Day RateFY12FY13FY14FY15Utilization-Adjusted Average Day Rate 185 million, or 49%, of Vessel Revenue in Q1 Fiscal 2015Johnson Rice Energy Conference20

New Vessel Trends by Vessel TypeTowing Supply/Supply VesselsAverage Day Rate, Adjusted Average Day Rate, and Average Fleet Size 25,000250Q1 Fiscal 2015Avg Day Rate: 15,519Utilization: 84.9% 20,000200 15,000150 10,000 5,0006357 59 61545146 47 4939 40 43688883 8578 8193103 103 104 105 10599 101 101102 10310050 0Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1FY08FY09Average Fleet SizeFY10FY11Average Day RateFY12FY13FY14FY15Utilization-Adjusted Average Day Rate 126 million, or 33%, of Vessel Revenue in Q1 Fiscal 2015Johnson Rice Energy Conference21

Tidewater’s New Subsea Business Six work-class ROV’s in current fleetand two more on order Commercial operations underway withadditional opportunities in Americas,SSAE and Asia/Pac ROV capabilities generating potentialfor OSV pull throughJohnson Rice Energy Conference22

Tidewater’s Future Continue to improve upon stellar safety and compliance programs Disciplined deployment of cash as we complete our OSV fleetreplacement and enhancement and expand our ROV business Maintain solid balance sheet and financial flexibility to deal withindustry uncertainties and seize opportunities when presented Return capital to shareholders through dividends andopportunistic share repurchasesJohnson Rice Energy Conference23

Johnson Rice Energy ConferenceJeffrey M. PlattPresident & CEOJoseph M. BennettEVP & Chief IROOctober 1, 2014

AppendixJohnson Rice Energy Conference25