CORPORATE PRESENTATION AUGUST 2015 Forward-Looking & Other Cautionary Statements Please reference the last two pages of this presentation for important disclosures on: Forward-looking statements Non-GAAP measures Reserves Well Performance 2 Key Highlights Gaining operational momentum as results from extended reach lateral “XRL” program are improving Latest completion design yielding improved well economics compared to previous techniques Have realized a 25% drop in drilling and completion costs over the fourth quarter 2014 2015 well performance and drilling efficiency improving Recent well performance delivering improved results and builds confidence in future performance expectations 2015 production guidance was recently increased for the third time XRL drilling days reduced by 40% compared to earlier wells NE Wattenberg generating solid well economics in current environment Generating +25% rate-of-return at commodity price strip Builds a stronger production growth and cash flow outlook which strengthens financial position Financially well-positioned Excellent liquidity of $450 million, consisting of $101 million of cash and short term investments and zero drawn on revolving credit facility Hedges on ~80% of 2015 oil volumes at ~$90 per bbl with favorable 2016 hedges at ~$80 per bbl 3 COMPANY OVERVIEW Bill Barrett Corporation Overview Well positioned with highly concentrated acreage Concentrated Asset Portfolio YE2014 proved reserves – 122 MMBoe 3P reserves – 477 MMBoe DJ Basin provides flagship asset Attractive economics in current oil price environment Uinta Oil Future Optionality Projected +60% production growth in 2015; +25% in 2016 ~2,000 drilling locations Positioned to deliver strong multi-year production growth Targeting 2014-2016 CAGR of ~20% Solid financial position Current liquidity of ~$450 million BBG headquarters Earliest debt maturity is in 2019 5 DJ Basin Top-Tier Economics Delivering Strong Growth Bill Barrett Corp. has consistently generated strong production and reserve growth from its core assets Trend expected to continue in 2015 with 90% of drilling capital dedicated to the DJ Basin DJ Basin is the primary component of asset portfolio Production (MMBoe)1 Proved Reserves (MMBoe)1 6.1-6.5 6 140 27% 122 120 100 4 45% 45% 40% 55% 60% 2013 2014 80 60 2 55% 40 73% 20 0 0 2010 2011 2012 DJ 1 2013 2014 2015E 2010 2011 2012 DJ UOP UOP Pro forma for previously completed asset sales and reflects recent production guidance increase for 2015; DJ Basin and Uinta Basin 2015 production is an approximate estimate based on company guidance 6 DJ Basin Provides Foundation for Growth NE Wattenberg proving to be a strong asset in current oil environment Early XRL well results have validated our conviction of the play Preferred completion design yielding improved well results Generating +25% rate-of-return at commodity price strip Drilling plan strengthens production growth outlook to build stronger cash flows heading into 2016 Annual corporate targeted production growth rate of ~20% CAGR for 2014-2016; DJ Basin oil volumes expected to significantly grow over next several years 2015 budget of $320 million to $350 million, includes ~35-40 XRL operated wells in NE Wattenberg Excluding carryover capital, the annualized capital expenditure run-rate is expected to be $225-$275 million, based on a 40-well XRL program in NE Wattenberg for 2016 Capital budget for 2015 and 2016 is fully-funded Sources include internal cash flow, cash on hand, borrowings under revolving credit facility, non-core asset sales 7 Capital Disciplined Approach Production (MMBoe)1 Capital Expenditures ($mm)1 $600 8 $500 6 $400 $300 4 $200 2 $100 $0 0 2014 2015E DJ 2016E 2014 UOP 2015E DJ 2016E UOP Prudently managed capital expenditures to adapt to a lower commodity price environment while building a foundation for multi-year growth Operationally flexible to quickly adapt to changing macro-economic environment ~20% company production growth CAGR; ~43% DJ Basin production growth CAGR 1 Estimated capital expenditures and production volumes for 2015 and 2016 represent approximate mid-point of internal estimates incorporating ~35-40 operated XRL operated wells in 2015 and ~40 XRL operated wells in 2016, XRL completed well cost of $6.25 mm 8 DJ BASIN DJ Basin: Operating in our Backyard Large, contiguous acreage position provides substantial running room 98,188 total net acres in the DJ Basin 49,359 net acres in core NE Wattenberg area Confidence in XRL program increasing Preferred completion yielding improved initial well performance compared to early design NE Wattenberg provides growth driver 2Q15 DJ Basin production up 76% YOY 90% of 2015 capital budget targeting NE Wattenberg ~35-40 operated XRL wells in 2015 and ~40 operated XRL wells in 2016 Maintain focus on total operational efficiency to enhance economic returns Significantly reduced XRL well drilling days Targeting further cost improvements 10 Operating In the Right Basin at the Right Time XRL program ranks fourth among all plays BBG NE Wattenberg wells generate 15% ROR at ~$43/bbl1 (1) Calculated for an XRL well completed with a ~9,500’ lateral, 55-stage plug-and-perf design, $6.25 mm well cost and incorporates $9/bbl long-term WTI differential Source: Credit Suisse Equity Research Oil and Gas Primer: E&Ps, May 2015 11 DJ Basin Rate-of-Return Assumptions 700 Mboe (2-Stream) EUR with $6.25 million well cost economics Description Assumptions Flat WTI Oil Price $/bbl Flat HH Gas Price $/mmbtu IRR Pre-Tax PV10 Payout (Years) (millions) WTI Oil Price ($/Bbl) $55.00 $50 $2.75 22% $2.6 3.4 Oil Differential ($/Bbl) ($9.00) $55 $3.00 28% $3.5 2.9 $3.00 $60 $3.25 34% $5.0 2.5 ($0.41) $65 $3.50 39% $6.0 2.2 2-Stream Wellhead EUR (MBoe) 700 $70 $3.75 46% $7.3 1.9 3-Stream Sales EUR (MBoe) 751 NYMEX Gas Price ($/MMBtu) Gas Differential ($/MMBtu) % Liquids (oil + NGL) 79% NRI 85% CAPEX/Well (millions) $6.25 Well F&D ($/Boe) $9.79 Pre-Tax PV10 (millions) $3.5 IRR1 28% Payout (1) (2) 3-Stream EUR – 751 Mboe2 Gas 20% NGL 15% Oil 65% 2.9 Years Calculated for an XRL well completed with a ~9,500’ lateral, 55-stage plug-and-perf design, $6.25 mm well cost; liquids yield estimated to be ~84% in the first year and ~79% over the life of the well EUR based on internal Company estimates derived from company and peer drilling results; first year oil recovery estimated to be ~20% of EUR 12 XRL Evolution Completed DJ Basin development moves from 640-acre to 1,280-acre spacing (Gross operated wells spud by year) 2013 2014 61 64 640 640 No XRLs drilled in 2013 15-18 stages All completed using swell packers and sliding sleeves Averaged 600-800 lbs sand per lateral foot 2015E 35-40 1,120 1,280 40 stages transitioned to 55 stages by year end Sleeves transitioned to Plug n’ Perf Technology <1,000lbs sand per foot transitioned to >1,000lbs sand per foot Transitioned from <9,000 laterals to >9,000 foot laterals by year end yielding improved results 1,280 55 stages Plug n’ Perf Technology ~9,500’ laterals 1,000+lbs sand per foot Competitive advantage: ~80% of NE Wattenberg acreage can be developed with XRLs (NE Wattenberg 3P Undeveloped Locations) 2013 100% 640 640 2014 2015E 75% 1,280 ~80% 1,280 640 1,280 640 1,280 Reconfiguring inventory to optimize XRL drilling 13 NE Wattenberg Provides a Strategic Advantage Concentrated acreage position allows for efficient and economic development NE Wattenberg – 49,359 net acres 1,100 identified drilling locations ~80% of acreage can be developed with XRL wells in 1,280-acre spacing unit +25% ROR at commodity price strip Ability to efficiently manage capital program Maintain operational flexibility with no long-term drilling rig contracts 4 XRL wells begin initial sales in August 4 XRL wells begin initial sales in July Generating greater capital efficiency gains through 40% faster drilling times XRL drilling program delivering very good early-stage performance 10 XRL wells begin initial sales in June Preferred completion technique with controlled flow back leading to shallower initial declines Initial production data validating performance assumptions BBG horizontal wells (through 2Q15) 2015 planned XRL wells 14 Building Growth Platform …but able to generate a meaningful growth profile Adapted to a changing macro environment by reducing capital… DJ Basin Production (MMBoe)1 DJ Basin Capital Expenditures ($mm)1 6 $500 $400 4 $300 $200 2 $100 0 $0 2014 1 2015E 2013 2016E 2014 2015E 2016E Estimated capital expenditures and production volumes represent approximate mid-point of internal estimates incorporating ~35-40 XRL well drilling program for 2015 and ~40 XRL well drilling program in 2016 15 Plug-and-Perf Completions Yielding Improved Production Profile Enhanced design proving to be a game changer 1,000 ~9,500’ lateral completed with plug-and-perf Tighter perf intervals – 60’ vs. 240’ >1,000 lbs of sand per foot vs. <1,000 lbs of sand per foot Controlled flow back resulting in similar early rates and shallower production declines Avg. Daily Oil Rate (boe/d) ~46% increase in performance through initial 8 months 55-stages (three perf intervals) vs. 40-stages (one perf interval) 100 XRL 55-Stage w/PnP (4 wells) XRL 40-Stage w/Sliding Sleeves (12 wells) Early Design - 40-stage Sliding Sleeve 10 1 2 3 4 5 6 7 8 9 Month Plug-and-Perf exhibiting improved initial rates; shallower decline Enhanced Design - 55-stage Plug-and-Perf 30-day avg. = 649 Boe/d (peak oil month) 60-day avg. = 615 Boe/d 90-day avg. = 580 Boe/d * Graphic representation of a 55-stage plug-and-perf completion design compared to a 40-stage sliding sleeve completion design 16 Enhancing Cost Efficiencies Building Efficiencies Through Longer Laterals XRL D&C Costs Down 25%* $9 $300 $8.25 mm $8 Targeting 5-10% additional cost reduction $250 $7 (Drilling Cost/Lateral Foot) $6.25 mm (millions) $6 $5 $4 $3 $200 $150 XRL well drilling days reduced by 40% to 10days/well , “best-in-class” well drilled in 8 days $100 $2 $50 $1 $0 $0 2014 Drilling Completions 2013 2015E 640 Facilities * Based on current actual well cost of $6.25 mm for an XRL well with ~9,500’ lateral, 55-stage plug-and-perf, 1,000 lbs sand/foot 17 2014 1,120 1,280 2015E Increasing Geologic Confidence Continue to refine reservoir and resource understanding in the Niobrara A, B, C, Codell and Greenhorn utilizing most recently acquired core data Prospective for up to Six Stacked Pay Zones BBG – CB Rudd Core Well Niobrara A Initial Codell tests have been drilled on western most acreage position. Additional delineation opportunities to the east Niobrara B Niobrara C Codell Niobrara “A” Chalk prospective under northern acreage Bridge Creek Ls - Greenhorn Initial well drilled with completion scheduled to begin shortly Lincoln Ls - Greenhorn Two potential additional targets in the Greenhorn – Bridge Creek and Lincoln Limestone 18 NE Wattenberg Generalized Development Spacing* * Graphic representation of the expected 1,280-acre development pattern of the NE Wattenberg acreage; actual development may differ 19 UINTA OIL PROGRAM Uinta Oil Program Wasatch, Green River Formations Large, Scalable Program: 165,000+ net acres* 2,300 feet stacked play prospective for the Green River and Wasatch formations South Altamont 21,613 net acres 50+ rig year inventory Production: 5,300 Boe/d (2Q15) Wax crude postings, as a deduct from WTI are averaging $8.75/bbl YE 2014 Proved reserves: 48 MMBoe; 3P reserves: 151 MMBoe 10 Miles 2015 plans are to drill 7 wells in East Bluebell and 8 obligation wells in Black Tail Ridge 21 East Bluebell 24,365 net acres BTR/Lake Canyon Gas Production net acres BBG 106,167* Acreage * Includes additional acreage that can be earned through drilling Oil Production BBG acreage Core and Reservoir Characterization Program TGR3 Green River Continue refinement of reservoir and resource understanding in the Lower Green River Formation pay intervals Douglas Creek FD State 10-36D BBG cored 2 wells in the TGR3, Douglas Creek, Castle Peak and Uteland Butte pay intervals FD State 10-36D: cut 463 ft. core, Lower Green River Aurora 3-32D: cut 411 ft. core, Lower Green River 3 Point Mrkr Core Core East Bluebell: Increasing Technical Understanding Core processing and evaluation underway Micro seismic and Completions Aurora 3-32D Two wells to be monitored with micro seismic during completions utilizing different fracturing techniques (Slick Water and Hybrid Gel/Slick Wtr) 22 Black Shale Castle Peak Uteland Butte Core 40-Acre Pilot Test – Six BBG wells offsetting producing wells - Core Well OPERATING PLAN AND FINANCE 2015 and 2016 Outlook Period Comment 3Q15 Production guidance of 1.5 MMBoe; spud 9 XRL wells; 8 XRL wells begin initial flow-back 4Q15 Spud 12 XRL wells; 4 XRL wells begin initial flow-back; 10 XRL wells expected to reach peak oil production 2016 Anticipate capital budget of $225–$275 mm; 10-15% production growth; spud ~40 XRL wells 2015 Guidance Production (MMBoe)1 Capital expenditures of $320-$350 million 8.0 Total production of 6.1-6.5 MMBoe ~23% YOY growth at the mid-point 6.0 3Q15 guidance of 1.5 MMBoe 4.0 2016 Capital and Production Outline Capital expenditures of $225-$275 million 2.0 Spud ~40 XRL wells Corporate production growth range of ~10-15% DJ Basin production growth of ~25% 0.0 2010 2011 2012 2013 DJ 1 Pro forma for previously completed asset sales, estimated production volumes for 2015 and 2016 represent approximate mid-point of guidance and internal estimates 24 2014 UOP 2015E 2016E Robust Hedging Program Provides Predictability 2015: ~80% of oil and natural gas production hedged for remainder of the year at an average price of $89.81/Bbl and $4.13/MMBtu 2016: 6,771 Bbls/d of crude oil hedged at an average price of $80.47/Bbl and 5,000 MMBtu/d of natural gas hedged at an average price of $4.10/MMBtu 2017: 1,872 Bbls/d of crude oil hedged at an average price of $75.61/Bbl Crude Oil 25,000 $100 10,800 Volume (mmbtu/d) Volume (bbl/d) 12,000 Natural Gas 10,000 8,000 6,771 6,000 $80 $89.81 $20 20,000 20,000 15,000 10,000 $4.13 4,000 5,000 $80.47 5,000 2,000 $4.10 0 0 $60 2H15 $0 FY 2015 FY 2016 Hedge position as of August 6, 2015 25 FY 2016 Financially Well Positioned for 2015 and Beyond Borrowing base of $375 million with zero drawn and $101 million of cash and short term investments Letter of credit of $26 million Borrowing base expected to be reaffirmed at upcoming fall redetermination Debt Maturities (in millions) $500 Borrowing Base - $375 million with zero drawn Total liquidity of ~$450 million at June 30, 2015 Nearest debt maturity is in 2019 $400 $300 $200 $100 $0 2015 26 2016 2017 2018 2019 2020 2021 2022 Why Bill Barrett Corporation? Leading DJ Basin position providing competitive acreage advantage Top-Tier basin based on rates of return Contiguous acreage position enhances efficiencies Sustainable growth underpinned by ~2,000 development locations Focused XRL development in NE Wattenberg Recent well performance delivering improved results ~80% of NE Wattenberg acreage can be developed with XRL wells XRL program provides greater growth clarity Projecting ~20% pro forma production growth CAGR over the next several years Significant growth in DJ Basin production underpinned by XRL drilling program Financial capacity to withstand current macro-economic environment Maintain strong liquidity with no near-term debt maturities 27 APPENDIX Northeast Wattenberg: Prime Position Among Peers Excellent position yet to be fully valued Located between BCEI positions Niobrara Formation Adjacent to NBL Wells Ranch East Pony/ Redtail BCEI Successful extended reach laterals within 2 miles of BBG position SYRG Successful 40-acre spacing within 3 miles of BBG position NBL Loeffler Pad NBL Wells Ranch CRZO Razor/Rohn BCEI PDCE Waste Mgt. Continuation of geologic and geophysical parameters across position 10 miles 29 BBG Acreage DJ Drilling and Completions Evolution Evolution to XRL’s completed with plug-and-perf technique and more proppant More Frac Stages Combined with Increasing Proppant Per Lateral Foot as BBG Evolves Towards Full-Scale XRL Development 2012 2013 2014 2015 ~4,000 ft. lateral, 15-18 stages, 600 lbs/ft. proppant ~4,000 ft. lateral, 17-24 stages, 600-1,000 lbs/ft. proppant Sleeves and Swell Packers, ~4,000-9,700 ft. lateral, 16-32 stages, 700-1,200 lbs/ft. proppant Cemented Plug and Perf Frac, ~9,000-9,700 ft lateral, 40-55 stages, 1,000-1,400 lbs/ft proppant Plug-and-Perf Completions Yielding Improved Production Profile Have methodically evolved towards longer laterals, more stages and more sand to more efficiently and effectively develop the field Current completion design resulting in shallower decline curve and improved results ~9,500’ lateral completed with plug-and-perf vs. sliding sleeve, 55-stages as compared to 40-stages >1,000 lbs of sand per foot as compared to <1,000 lbs of sand per foot Tighter perf intervals – 60’ vs. 240’ Controlled flow back resulting in shallower initial production declines Source: Corporate Disclosure, IHS 30 Controlled Flowback of XRL Well Providing Better Results Leads to shallower declines and improved EURs 31 DJ Basin Infrastructure – Expected Capacities Cheyenne Crude Terminal 52mbbls/d Pony Express Conversion In Service: 230-320mbbls/d Pony Express NE CO Lateral 2Q15: 90mbbls/d Suncor Refinery: 96MBbls/d White Cliffs Pipeline In Service: 150mbbls/d Plains Rail Facility: 2H14: 68mbbls/d 32 DJ Basin Infrastructure Existing local oil refining capacity and rail infrastructure >350mbbls/d Capacity Expansion Projects Capacity (MBbls/d) Timing Pony Express Pipeline 230 In Service White Cliffs Expansion 75 In Service Pony Express DJ Lateral 90 In Service Saddlehorn Pipeline Open Season Completed H2 2016 Grand Mesa Pipeline Open Season Completed H2 2016 DCP total gas processing capacity ~840 MMcf/d Capacity Expansion Projects (MMcf/d) Lucerne II 2015 Additions 200 Timing In Service Front Range Pipeline brings NGLs access to Mt. Belvieu NGL market NGL Pipelines Additions Capacity (MBbls/d) Timing Front Range Pipeline 150 In Service 33 Uinta Basin: Well Positioned Among Peers Wasatch, Green River Formations DVN EPE CPG NFX CPG QEP UPL NFX LINN 10 Miles 34 BBG Acreage RESERVES AND SELECTED FINANCIALS Year-End 2014 Reserves Year-end 2014 $4.35 per MMBtu HH and $94.99 per barrel WTI pricing used in reserve calculations Proved MMBoe Proved Probable & Possible Reserves MMBoe Gross/Net Drilling Locations Denver Julesburg1 73 301 1,795/888 Uinta Oil2 Program 48 151 1,537/714 1 25 367/85 TOTAL 122 477 3,699/1,687 % OIL 69% 68% Proved Total Estimated 3P Reserves Other 0 100 200 300 MMBoe 1DJ: • • • 3P Reserves include up to 8 wells per drilling unit per horizon; including Niobrara B and C formations and Codell formation; majority based on extended reach laterals 750 2013YE 640 locations now 1280 locations in the DJ 380 1280 locations added in the DJ 2 Blacktail Ridge-Lake Canyon: Predominantly 80-acre spacing; East Bluebell: Predominantly 40-acre spacing 36 Year-End 2014 3P Reserves by Location UOP 3P Reserves (151 MMBoe) DJ 3P Reserves (301 MMBoe) 56 40 60 39 206 51 NE Wattenberg • • Chalk Bluffs Core Wattenberg 750 2013YE 640 acre locations now 1280 acre locations 380 1280 acre locations added Blacktail Ridge/Lake Canyon 37 80-acre and160-acre spacing Upside from downspacing East Bluebell South Altamont Natural Gas and Oil Hedges As of August 6, 2015 Swaps Period Oil Volume (Bbls/d) 3Q15 4Q15 1Q16 2Q16 3Q16 4Q16 1Q17 2Q17 3Q17 4Q17 Natural Gas WTI Price ($/Bbl) Volume (MMBtu/d) NWPL Price ($MMBtu) 10,800 $ 89.81 20,000 $ 4.13 10,800 $ 89.81 20,000 $ 4.13 7,300 $ 81.65 5,000 $ 4.10 7,300 $ 81.65 5,000 $ 4.10 6,250 $ 79.11 5,000 $ 4.10 6,250 $ 79.11 5,000 $ 4.10 2,250 $ 73.88 2,250 $ 73.88 1,500 $ 78.16 1,500 $ 78.16 38 - - - - - - - - Pro Forma Production, Price and Cost Data Pro forma for asset sales largely completed in the fourth quarter of 2013 and third quarter of 2014. Year Ended December 31, 2014 2013 Change 2Q15 1H15 Oil (MBbls) 1,120 2,245 3,541 2,802 26% Natural Gas (MMcf) 1,800 3,558 6,494 5,256 24% 208 371 543 334 63% 1,628 3,209 5,166 4,012 29% 17,890 17,729 14,153 10,992 29% $48.68 $42.89 $76.61 $81.52 -6% 2.33 2.46 4.84 3.84 26% NGLs(per Bbl) 12.76 13.00 22.90 23.75 -4% Combined (per Boe) 37.70 34.24 61.00 63.95 -5% $78.44 $77.35 $78.41 $81.23 -3% 4.10 4.01 3.74 5.88 -36% 12.76 13.00 22.77 32.26 -29% 60.13 60.07 60.84 67.13 -9% -2% Production Data NGLs(MBbls) Combined volumes (MBoe) Daily combined volumes (Boe/d) Average Prices (before effects of realized hedges) Oil (per Bbl) Natural Gas (per Mcf) Average Prices (after the effects of realized hedges) Oil (per Bbl) Natural Gas (per Mcf) NGLs(per Bbl) Combined (per Boe) Average Costs (per Boe): Lease operating expense $7.01 $7.85 $8.62 $8.83 Gathering, transportation and processing expense 0.57 0.58 0.88 0.93 -6% Production tax expense 2.34 1.98 4.80 4.38 10% 32.36 32.70 33.26 29.07 14% 7.31 6.91 8.17 12.17 -33% Depreciation, depletion and amortization General and administrative expense, excluding long-term incentive compensation expense(1) (1) This presentation is a non-GAAP measure. Average costs per Boe for general and administrative expense, including long-term incentive compensation expense, as presented in the Consolidated Statements of Operations, were $9.01 and $8.73 for the three and six months ended June 30, 2015, and $10.38 and $16.11 for the years ended December 31, 2014 and 2013, respectively. 39 1H15 Production, Wells Spud and Capital Expenditures 1H 2015 CAPEX and Production Spuds Area DJ Basin Uinta Oil Project CAPEX Production $millions MBoe Area 159 2,191 DJ Basin 19 996 Uinta Oil Powder River Basin 1 18 Other 0 4 179 3,209 Total $ FF&E Expenditures Capex Incl FF&E Excl Acq 1 $ Operated 180 40 Total Gross 16 Net 15.3 Non-Operated Gross Net Total Gross 20 5.9 36 Net 21.2 8 4.3 2 0.1 10 4.4 24 19.6 22 6.0 46 25.6 1Q15 Capital Expenditures and Production CAPEX and Production Spuds Area CAPEX Production $millions MBoe Operated Area Gross Non-Operated Net Gross Net Total Gross Net 100 1,051 DJ Basin 9 8.9 13 3.6 22 12.5 13 511 Uinta Oil 4 2.0 2 0.1 6 2.1 Powder River Basin 1 16 13 11 15 4 28 15 Piceance Basin 0 0 Other 0 3 114 1,581 DJ Basin Uinta Oil Project Total $ FF&E Expenditures Capex Incl FF&E Excl Acq $ 114 41 Total 2015 Guidance Capital program 100% directed at oil growth Capex by Area Total capital of $320-$350 million UOP 10% First half 2015 capital of ~$180 million Total production of 6.1–6.5 MMBoe ~23% YOY growth at the mid-point1 NE Wattenberg 90% Third quarter guidance of 1.5 MMBoe Lease operating expenses of $48-$52 million Gathering, transportation and processing costs of $4-$6 million Production Mix Unused commitments of $20-$21 million2 General and administrative expenses before non-cash, performance-based compensation of $36-$40 million Gas 20% NGL 10% Oil 70% 1Excludes production associated with any assets that have been sold 2Primarily related to commitments of unused pipeline natural gas transportation 42 Land Summary As of December 31, 2014 Area Gross Acreage Net Acreage Avg. Gross Project NRI Avg. BBG Working Interest Active Oil Properties Uinta Basin – Uinta Oil Program Blacktail Ridge/Lake Canyon Minimum to be earned East Bluebell Other 110,496 123,265 36,581 47,579 317,921 55,465 50,702 24,365 21,613 152,145 82% 82% 83% 80-100% 51% 51% 70% 70-90% 47,826 12,395 22,478 2,910 85,609 81% 84% 83% Varies 97%-100% Varies Total DJ Basin Program 72,479 16,127 37,751 3,857 130,214 Powder Deep Oil Program 41,113 19,492 80% 10%-65% 4,649 289,066 30,587 21,431 21,312 151,647 4,184 219,528 16,822 11,045 14,401 123,467 88% 83% 85% 83% 83% Varies 90% 100% 55% 44% 55% Varies Total Uinta Oil Program DJ Basin Northeast Wattenberg Wattenberg Core Chalk Bluffs Other Exploration & Other Properties Piceance Basin – Cottonwood Gulch Paradox Basin – Yellow Jacket Uinta Basin (Hornfrog, including to-be-earned) DJ Basin – Sage Brush Alberta Basin Other Note: Ownership interest(s) include to-be-drilled locations and should be considered estimates as interests vary over time. 43 Forward-Looking & Other Cautionary Statements FORWARD-LOOKING STATEMENTS: This presentation (which includes oral statements made in connection with this presentation) contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All written or oral statements, other than historical financial information, may be deemed to be forward-looking statements. Words such as expects, forecast, guidance, anticipates, intends, plans, believes, seeks, estimates and similar expressions or variations of such words are intended to identify forward-looking statements; however, these are not the exclusive means of identifying forward-looking statements. In particular, the Company is providing 2015 and 2016 operating guidance, which contains projections for certain 2015 and 2016 operational and financial metrics as well as certain projections for the third quarter of 2015. These and other forward-looking statements in this presentation are based on management’s judgment as of the date of this presentation and are subject to numerous risks and uncertainties. Actual results may vary significantly from those indicated in the forward-looking statements due to, among other things, oil, NGL and natural gas price volatility, including regional price differentials; changes in operational and capital plans; costs, availability and timing of build-out of third party facilities for gathering, processing, refining and transportation; delays or other impediments to drilling and completing wells arising from political or judicial developments at the local, state or federal level, including voter initiatives related to hydraulic fracturing; development drilling and testing results; the potential for production decline rates to be greater than expected; regulatory delays, including seasonal or other wildlife restrictions on federal lands; exploration risks such as drilling unsuccessful wells; higher than expected costs and expenses, including the availability and cost of services and materials; unexpected future capital expenditures; economic and competitive conditions; debt and equity market conditions, including the availability and costs of financing to fund the Company’s operations; the ability to obtain industry partners to jointly explore certain prospects, and the willingness and ability of those partners to meet capital obligations when requested; declines in the values of our oil and gas properties resulting in impairments; changes in estimates of proved reserves; compliance with environmental and other regulations; derivative and hedging activities; risks associated with operating in one major geographic area; the success of the Company’s risk management activities; title to properties; litigation; environmental liabilities and other factors discussed in the Company’s reports filed with the Securities and Exchange Commission (“SEC”). Please refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 filed with the SEC, specifically Item 1A, Risk Factors, and other filings including our Current Reports on Form 8-K and Quarterly Reports on Form 10-Q, for further discussion of risk factors that may affect the forwardlooking statements. The Company assumes no obligation to publicly revise or update any forward-looking statements based on future events or circumstances or otherwise, except as required by applicable law. All forward-looking statements are qualified in their entirety by this cautionary statement. This presentation is neither an offer to sell nor a solicitation of an offer to buy any securities, nor shall there be any sale of any such securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. 44 Disclosures DISCLOSURE STATEMENTS Please refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 filed with the SEC, specifically Item 1A, Risk Factors, and other filings including our Current Reports on Form 8-K and Quarterly Reports on Form 10-Q, for further discussion of risk factors that may affect the forward-looking statements. The Company encourages you to consider the risks and uncertainties associated with projections and other forward-looking statements and to not place undue reliance on any such statements. In addition, the Company assumes no obligation to publicly revise or update any forward-looking statements based on future events or circumstances or otherwise, except as required by applicable law. Reserve Disclosure The SEC generally permits oil and gas companies, in filings made with the SEC, to disclose proved reserves, which are reserve estimates that geological and engineering data demonstrate with reasonable certainty to be recoverable in future years from known reservoirs under existing economic and operating conditions and certain probable and possible reserves that meet the SEC’s definitions for such terms. In this presentation, the Company uses the terms “estimated ultimate recovery”, “EUR” or other descriptions of potential reserves or volumes of reserves, as well as aggregated proved, probable and possible (“3P”) reserves, which the SEC guidelines restrict from being included in filings with the SEC. The Company provides internally generated estimates for probable and possible reserves in this presentation. The estimates conform to Society of Petroleum Evaluation Engineers (SPEE) methodology. They are not prepared or reviewed by third party engineers. The Company’s 2014 probable and possible reserve estimates are determined using year-end pricing, as used in the calculation of proved reserves. Probable and possible reserves and other estimates of non-proved reserves are subject to significantly greater risk of recovery than proved reserves. EURs refer to the Company’s internal estimates of per-well hydrocarbon quantities that may be potentially recovered from a hypothetical and/or actual well completed in the area. Actual quantities that may be ultimately recovered from the Company’s interests are unknown. Factors affecting ultimate recovery include the scope of the Company’s ongoing drilling program, which will be directly affected by the availability of capital, drilling and production costs, availability and cost of drilling services and equipment, lease expirations, transportation constraints, regulatory approvals and other factors, as well as actual drilling results, including geological and mechanical factors affecting recovery rates. Estimates of ultimate recovery from reserves may change significantly as development of the Company’s core assets provide additional data. In addition, the Company’s production forecasts and expectations for future periods are dependent upon many assumptions, including estimates of production decline rates from existing wells and the undertaking and outcome of future drilling activity, which may be affected by significant commodity price declines or drilling cost increases. The Company's estimate of probable and possible reserves, 3P reserves and EURs are provided in this presentation because management believes it is useful, additional information that is widely used by the investment community in the valuation, comparison and analysis of companies. Well Performance The calculation of 30-day initial production rates measures the daily production from a well starting with the date upon which the Company determines the well has achieved peak production and averages the daily production for the following 30 days. This date will occur at some date after oil production commences. In addition, in calculating the IP rate of a well over a specified period of time, the calculation will exclude days on which production is impaired for mechanical, third party mid-stream or other non-geologic reasons. IP rates and other initial indications of well performance do not necessarily reflect EURs or other long-term measures of a well’s performance. Peer data may not be comparable to results reported by the Company. Non-GAAP Measures Non-GAAP measures included herein include Adjusted Net Income, Discretionary Cash Flow, Pre-Tax PV10 and General and Administrative Expenses before Non-Cash Stock-Based Compensation. These measures are included because management believes they are useful to investors in evaluating the Company’s operating performance. These measures are widely used in the oil and natural gas industry. Calculations of these measures may differ by company. Please refer to the Company’s first and second quarter 2015, and full-year 2014 earnings releases dated May 8, 2015, August 6, 2015, and February 25, 2015, respectively, for reconciliations of these measures to the closest GAAP measure. ADDITIONAL INFORMATION: Rate of return estimates do not reflect lease acquisition costs or corporate general and administrative expenses. Initial and test results from a well do not necessarily reflect the well’s longer-term performance or the performance of other wells in the same area. 45 1099 Eighteenth Street, Suite 2300 Denver, CO 80202 303.293.9100 Website: www.billbarrettcorp.com Investor Relations Contact: Larry C. Busnardo (303) 312-8514 lbusnardo@billbarrettcorp.com