Q2 2016 Earnings Review August 9, 2016

Safe Harbor Statement

2

Statements made in this presentation that relate to future events or PNM Resources, Inc.’s (“PNMR”), Public Service Company of New Mexico’s (“PNM”), or Texas-New Mexico Power Company’s (“TNMP”) (collectively, the “Company”) expectations, projections, estimates, intentions, goals, targets, and strategies are made pursuant to the Private Securities Litigation Reform Act of 1995. Readers are cautioned that all forward-looking statements are based upon current expectations and estimates. PNMR, PNM, and TNMP assume no obligation to update this information. Because actual results may differ materially from those expressed or implied by these forward-looking statements, PNMR, PNM, and TNMP caution readers not to place undue reliance on these statements. PNMR's, PNM's, and TNMP's business, financial condition, cash flow, and operating results are influenced by many factors, which are often beyond their control, that can cause actual results to differ from those expressed or implied by the forward-looking statements. For a discussion of risk factors and other important factors affecting forward-looking statements, please see the Company’s Form 10-K and 10-Q filings with the Securities and Exchange Commission, which factors are specifically incorporated by reference herein.

Non-GAAP Financial Measures For an explanation of the non-GAAP financial measures that appear on certain slides in this presentation (ongoing earnings and ongoing earnings per diluted share), as well as a reconciliation to GAAP measures, please refer to the Company’s website as follows: http://www.pnmresources.com/investors/results.cfm.

Opening Remarks and Overview Pat Vincent-Collawn

Chairman, President and CEO

Q2 2016 Financial Results and Company Updates

4

Q2 2016 Q2 2015 YTD 2016 YTD 2015

GAAP EPS $0.34 $0.40 $0.47 $0.57 Ongoing EPS $0.40 $0.44 $0.53 $0.65

2016 Ongoing EPS Guidance narrowed to $1.55 - $1.65 EPS shown on a diluted basis

Financial Results:

Company Updates:

General Rate Case update Hearing Examiner Recommended Decision

Regulatory Update

5

Filing Action Timing Docket No. NMPRC:

General Rate Case Filing Filed August 27, 2015 Recommended decision issued August 4, 2016; Rates expected to be implemented September 1, 2016

15-00261-UT

San Juan Generating Station Natural Gas Plant CCN Application (80 MW)

Filed April 26, 2016 Hearing scheduled for November 7-10, 2016; decision expected by end of 2016

15-00205-UT

AMI Filed February 26, 2016 PNM requested suspension on August 5, 2016

15-00312-UT

FERC:

Transmission Formula Rates Filed June 1, 2016 Informational filing submitted; rates effective June 1, 2016

N/A

TNMP:

TNMP TCOS Filed July 19, 2016 Rates expected to be effective September 2016 46184

Financial Overview Chuck Eldred

Executive Vice President and CFO

Q2 2016 Financial Summary

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$0.44 $0.40

($0.05) ($0.02) $0.03

Q2 2015 Q2 2016

Ongoing EPS

PNM TNMP Corporate/ Other

Load and Economic Conditions

8

Regulated Retail Energy Sales and Customers (weather-normalized, leap-year adjusted)

PNM % of 2015

Sales Volumes

Q2 2016 vs.

Q2 2015

YTD 2016 vs.

YTD 2015

Retail Load:

Residential 39% 1.9% (0.4%)

Commercial 46% (0.9%) 0.5%

Industrial 12% (7.0%) (7.1%)

Total Retail (0.4%) (0.7%) 2016 Load Growth Forecast: (2%) – 0%

Avg. Customers 0.7% 0.7% 2016 Customer Growth Forecast: 0.5%

(1) Volumetric load is billed on per-kWh usage (2) Demand-based load is billed on monthly kW peak (3) U.S. Bureau of Labor Statistics, June 2016

1.3%

3.7%

0.8%

1.9%

-2.0%

0.0%

2.0%

4.0%

6.0%

2013 2014 2015 2016

% C

hang

e

Employment Growth(3)

12-Month Rolling Average

Albuquerque Dallas Houston U.S.

TNMP % of 2015

Sales Volumes

% of 2015 Sales

Revenues

Q2 2016 vs.

Q2 2015

YTD 2016 vs.

YTD 2015

Volumetric Load(1):

Residential 51% 8.0% 3.0%

Commercial 46% 4.5% 2.6%

Total Volumetric Load 53% 6.2% 2.6%

Demand-Based Load(2) 47% 2.8% 2.2% 2016 Load Growth Forecast: 2% – 3%

Avg. End Users 1.5% 1.5% 2016 End User Growth Forecast: 1.0%

$1.55 Consolidated EPS $1.76

PNM $1.12 - $1.30

TNMP $0.49 - $0.51

Corp/Other ($0.06) – ($0.05)

2016 Guidance and Quarterly Distribution (Ongoing)

Original 2016 Guidance Range:

Narrowed 2016 Guidance Range: $1.55 Consolidated EPS $1.65

PNM $1.08 - $1.16

TNMP $0.50 - $0.51

Corp/Other ($0.03) – ($0.02)

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Revised 2016 Quarterly Distribution Q3 2016E Q4 2016E

46% 21%

Hearing Examiner General Rate Case Recommended Decision

10

Key Rate Case Elements (PNM Retail Share, net of ADIT)

Recommended Decision

Original Request

Impact to Rate Increase

ROE 9.575% 10.5% ($17) M

Rate Base:

Palo Verde Unit 2 Lease Purchase (64 MW) Disallowed $153 M ($24) M

Balanced Draft Technology Disallowed $39 M ($5) M

Five Months of CWIP $55 M $55 M No adjustment

Pre-Paid Pension Asset $82 M(1) $83 M No adjustment

Other Revenue Requirements:

Palo Verde Lease and Property Tax Expense (remaining 114 MW of leased capacity) Disallowed $19.5 M ($19.5) M

(1) The recommendation did not disallow any amounts associated with pre-paid pension; other changes resulted in a slight variation of the amount allocated to Retail rate base

• Non-fuel revenue increase of $41.3M versus $121.5M request • Retail rate base of $2,223M versus $2,458M request

Questions and Answers

Appendix

Q2 2016 vs Q2 2015 EPS (Ongoing): PNM

$0.31 $0.26

Q2 2015 Q2 2016

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PNM Q2 2016 Key Performance Drivers ∆ EPS

Elimination of Palo Verde Unit 2 lease costs, net of depreciation $0.03

Weather $0.02

Interest income from IRS, net of fees $0.02

Outage costs $0.01

El Paso Natural Gas FERC tariff refund in 2015 ($0.03)

Depreciation and property tax ($0.02)

Palo Verde Unit 3 market prices ($0.02)

Interest expense ($0.02)

AFUDC ($0.01)

FERC Generation Navopache contract ($0.01)

Palo Verde Nuclear Decommissioning Trust gains ($0.01)

Other ($0.01)

Q2 2016 vs Q2 2015 EPS (Ongoing): TNMP and Corporate

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($0.02) $0.01

Q2 2015 Q2 2016

Corporate

Q2 2016 Key Performance Drivers ∆ EPS Westmoreland financing agreements $0.02

Interest savings on repayment of 9.25% debt $0.01

$0.15 $0.13

Q2 2015 Q2 2016

TNMP Q2 2016 Key Performance Drivers ∆ EPS Load $0.02

TCOS rate relief $0.01

O&M increases ($0.02)

Weather ($0.01)

Depreciation and property tax ($0.01)

Other ($0.01)

Weather Impact

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PNM Q2 2016 Q2 2015 2016 Normal(1)

Heating Degree Days 360 354 301

Cooling Degree Days 504 417 495

Net EPS Impact compared to normal

$0.00 ($0.03)

TNMP Q2 2016 Q2 2015 2016 Normal(1)

Heating Degree Days 39 45 56

Cooling Degree Days 928 983 1,083

Net EPS Impact compared to normal

($0.02) ($0.01) (1) 2016 normal weather assumption reflects the 10-year average for the period 2005 - 2014.

2017 - 2019 Potential Earnings Power Last updated February 26, 2016

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(1) The currently authorized 10% ROE has been used for this presentation. (2) PNM Renewables reflect assets collected through the Renewable Rate Rider. (3) Transmission is recovered under the FERC formula rate methodology, which uses prior year average rate base and assumes mid-year rate increases, at a 10% ROE. To

reflect this inherent lag in the methodology, earnings potential represents the prior year average rate base and uses an ROE range of 7 – 9%. (4) 2017 Earnings Potential assumes a forward market price of $29/MWh; a price of $44/MWh is required to break even. PV3 is included in PNM rates beginning in 2018. (5) Consists primarily of Palo Verde Nuclear Decommissioning Trust gains and losses, AFUDC, refined coal, certain incentive compensation, earnings in 2017 associated

with the assets previously allocated to the Navopache contract, and the 65MW ownership of San Juan Unit 4 beginning in 2018. (6) TNMP Earnings Potential includes $0.02 of CTC in 2017 and 2018 and $0.01 in 2019. TNMP allowed returns are based on the most recently filed general rate case.

Changes in certain factors, including load growth and lower debt costs, present opportunities for further earnings potential. 2019 Earnings Potential includes $0.02 for the refinancing of $172M of 9.5% debt.

(7) Corporate/Other includes the capital expenditures and restructuring fees associated with the 65MW ownership of San Juan Unit 4 before 2018 and short and intermediate term bank debt.

This table is not intended to represent a forward-looking projection of 2017 -2019 GAAP or ongoing earnings guidance.

Allowed Return /

Equity Ratio

2017 Earnings Potential 2018 Earnings Potential 2019 Earnings Potential

Avg Rate Base EPS Avg Rate

Base EPS Avg Rate Base EPS

PNM Retail (1) 10% / 50% $2.4 B $1.50 $2.6 B $1.59 $2.5 B $1.58

PNM Renewables (2) 10% / 50% $95 M $0.06 $90 M $0.06 $85 M $0.05

PNM FERC Transmission (3) 10% / ~50% $180 M $0.08-$0.10 $245 M $0.11-$0.14 $270 M $0.12-$0.15

PV3 (4) ($0.13) Included in PNM Retail Included in PNM Retail

Items not in rates (5) $0.01-$0.04 ($0.02)-$0.01 ($0.01)-$0.05

Total PNM $2.7 B $1.52 - $1.57 $2.9 B $1.74 - $1.80 $2.9 B $1.74 - $1.83

TNMP (6) 10.125% / 45% $770 M $0.46 $810 M $0.48 $860 M $0.52

Corporate/Other (7) ($0.06)-($0.04) ($0.06)-($0.04) ($0.06)-($0.04)

Total PNM Resources $3.4 B $1.92 - $1.99 $3.7 B $2.16 - $2.24 $3.8 B $2.20 - $2.31

$203$239 $240 $237

Capital Forecast

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2016 – 2019 Total Capital Plan: $1.7B

PNM 2015-2019 Rate Base CAGR: 5 - 7%(1)

TNMP 2015-2019 Rate Base CAGR: 7 - 9%

(1)Includes the addition of PV3 to rate base in 2018, which does not have associated capital spending. (2)The additional 65 MW ownership of San Juan Unit 4 included in the December BART approval is part of Corporate/Other for 2016-2017 and PNM beginning in 2018. Does not include PNM’s application for Advanced Metering Infrastructure Project; suspension was requested August 5, 2016. Beginning in September 2016, depreciation rates reflect the full rate change proposed in the August 2015 General Rate Case filing. Amounts may not add due to rounding.

$293

$163 $168 $94

$113

$132 $102

$127

$125

$101 $114

$117

$37

$19 $14

$15

2016 2017 2018 2019

(In millions)

PNM Generation PNM T&D TNMP Corporate/Other Depreciation

$568

$415 $398 $353

Palo Verde Unit 3 added to

rate base

(2) (2)

PNM Plant EAF and Outages

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2016 - 2017 Outage Schedule

70.4% 72.3%

92.0%

71.8%

60.7%

91.8%

San Juan Four Corners Palo Verde12 months ending 6/30/1512 months ending 6/30/16

Unit Duration in Days

Time Period

Four Corners

5 95 Q3-Q4 2017

Palo Verde

3 34 Q4 2016

2 34 Q2 2017

1 34 Q4 2017

Balance Sheet and Credit Metrics

Liquidity as of August 5, 2016

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PNM TNMP Corporate/

Other

PNM Resources

Consolidated

Financing Capacity(1): (In millions)

Revolving credit facilities $450.0 $75.0 $300.0 $825.0

As of 8/5/16:

Short-term debt and LOC balances $105.4 $0.1 $184.7 $290.2

Remaining availability 344.6 74.9 115.3 534.8

Invested cash - - 1.5 1.5

Total Available Liquidity $344.6 $74.9 $116.8 $536.3

(1) Excludes intercompany debt and term loans

Selected Balance Sheet Information

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(1) Net of unamortized debt issuance costs (2) Excludes intercompany debt Amounts may not add due to rounding

(In millions) Dec 31, 2015 June 30, 2016

Long-Term Debt (incl. current portion) (1)

PNM $1,580.7 $1,631.6

TNMP 361.4 420.8

Corporate/Other 149.9 271.7

Consolidated $2,091.9 $2,324.0

Total Debt (incl. short-term) (2)

PNM $1,580.7 $1,757.6

TNMP 420.4 450.8

Corporate/Other 341.5 517.1

Consolidated $2,342.5 $2,725.4

Credit Ratings

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PNMR S&P Moody’s

Credit rating BBB+(1) Baa3(1)

Issuer outlook Stable Stable

(1) Issuer/Corporate rating (2) Senior unsecured (3) Senior secured

PNM S&P Moody’s

Credit rating BBB+(2) Baa2(2)

Issuer outlook Stable Stable

TNMP S&P Moody’s

Credit rating A(3) A1(3)

Issuer outlook Stable Stable